<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019e41f1-9cc4-7254-810e-dd09ebf7f2ec,g:de35c2c8-e8f5-4d37-8a70-24ced9a7414b-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="https://xbrl.org/2023/arcrole/summation-item" xlink:type="simple" xlink:href="https://www.xbrl.org/2023/calculation-1.1.xsd#summation-item"/>
  <link:roleRef roleURI="http://www.diamondeagleacquisitioncorporation.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="simple" xlink:href="dkng-20260630.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETS"/>
  <link:calculationLink xlink:role="http://www.diamondeagleacquisitioncorporation.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019e41f1-9d9c-70c0-ac9f-9de88b970cc8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019e41f1-9d9c-74cf-92e7-54ed6350a592" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e41f1-9d9c-70c0-ac9f-9de88b970cc8" xlink:to="loc_us-gaap_AssetsCurrent_019e41f1-9d9c-74cf-92e7-54ed6350a592" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestments_019e41f1-9d9c-7552-94a8-63d0d8e376fe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityMethodInvestments"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e41f1-9d9c-70c0-ac9f-9de88b970cc8" xlink:to="loc_us-gaap_EquityMethodInvestments_019e41f1-9d9c-7552-94a8-63d0d8e376fe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019e41f1-9d9c-76f2-9ae0-366390ddc009" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e41f1-9d9c-70c0-ac9f-9de88b970cc8" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019e41f1-9d9c-76f2-9ae0-366390ddc009" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019e41f1-9d9c-7b74-91ce-2f3eb960120d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e41f1-9d9c-70c0-ac9f-9de88b970cc8" xlink:to="loc_us-gaap_Goodwill_019e41f1-9d9c-7b74-91ce-2f3eb960120d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_DepositsAndOtherNoncurrentAssets_019e41f1-9d9c-775a-abfa-e3dc41e77786" xlink:href="dkng-20260630.xsd#dkng_DepositsAndOtherNoncurrentAssets"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e41f1-9d9c-70c0-ac9f-9de88b970cc8" xlink:to="loc_dkng_DepositsAndOtherNoncurrentAssets_019e41f1-9d9c-775a-abfa-e3dc41e77786" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_019e41f1-9d9c-75f8-96e7-1a7f8b7dbc09" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e41f1-9d9c-70c0-ac9f-9de88b970cc8" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_019e41f1-9d9c-75f8-96e7-1a7f8b7dbc09" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_019e41f1-9d9c-7e77-a7f9-e11418a35506" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e41f1-9d9c-70c0-ac9f-9de88b970cc8" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_019e41f1-9d9c-7e77-a7f9-e11418a35506" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019e41f1-9d9c-79b4-b3ec-a529f92062d4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019e41f1-9d9c-764a-a2ab-5d76a358b6c5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e41f1-9d9c-79b4-b3ec-a529f92062d4" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019e41f1-9d9c-764a-a2ab-5d76a358b6c5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_CashReservedForUsersCurrent_019e41f1-9d9c-7389-8dc6-8ab11af4e010" xlink:href="dkng-20260630.xsd#dkng_CashReservedForUsersCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e41f1-9d9c-79b4-b3ec-a529f92062d4" xlink:to="loc_dkng_CashReservedForUsersCurrent_019e41f1-9d9c-7389-8dc6-8ab11af4e010" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_019e41f1-9d9c-777a-a527-edb590fe0025" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e41f1-9d9c-79b4-b3ec-a529f92062d4" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_019e41f1-9d9c-777a-a527-edb590fe0025" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_019e41f1-9d9c-71b9-af32-dd924e0be811" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e41f1-9d9c-79b4-b3ec-a529f92062d4" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_019e41f1-9d9c-71b9-af32-dd924e0be811" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashCurrent_019e41f1-9d9c-7c67-bf2a-37ebf637b473" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCashCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e41f1-9d9c-79b4-b3ec-a529f92062d4" xlink:to="loc_us-gaap_RestrictedCashCurrent_019e41f1-9d9c-7c67-bf2a-37ebf637b473" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019e41f1-9d9c-7c9c-a1ce-c38245101a0f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_019e41f1-9d9c-7d76-8c67-b9f88b300481" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e41f1-9d9c-7c9c-a1ce-c38245101a0f" xlink:to="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_019e41f1-9d9c-7d76-8c67-b9f88b300481" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_LiabilitiesToUsersCurrent_019e41f1-9d9c-794a-bdac-fd0d43876584" xlink:href="dkng-20260630.xsd#dkng_LiabilitiesToUsersCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e41f1-9d9c-7c9c-a1ce-c38245101a0f" xlink:to="loc_dkng_LiabilitiesToUsersCurrent_019e41f1-9d9c-794a-bdac-fd0d43876584" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_019e41f1-9d9c-7903-ab04-ebe46a2f7aed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e41f1-9d9c-7c9c-a1ce-c38245101a0f" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_019e41f1-9d9c-7903-ab04-ebe46a2f7aed" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_019e41f1-9d9c-7d81-932d-90e1ef30a7c0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e41f1-9d9c-7c9c-a1ce-c38245101a0f" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_019e41f1-9d9c-7d81-932d-90e1ef30a7c0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019e41f1-9d9c-7829-bd6d-216b8cf39a68" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019e41f1-9d9c-768c-b3f7-3df9d2c7ab29" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e41f1-9d9c-7829-bd6d-216b8cf39a68" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019e41f1-9d9c-768c-b3f7-3df9d2c7ab29" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019e41f1-9d9c-7579-94c5-d7fb718516b0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e41f1-9d9c-7829-bd6d-216b8cf39a68" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019e41f1-9d9c-7579-94c5-d7fb718516b0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleLongTermNotesPayable_019e41f1-9d9c-7185-a52d-c730f76ede38" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConvertibleLongTermNotesPayable"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e41f1-9d9c-7829-bd6d-216b8cf39a68" xlink:to="loc_us-gaap_ConvertibleLongTermNotesPayable_019e41f1-9d9c-7185-a52d-c730f76ede38" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_019e41f1-9d9c-750c-99c5-d6777c9a1b9c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e41f1-9d9c-7829-bd6d-216b8cf39a68" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_019e41f1-9d9c-750c-99c5-d6777c9a1b9c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019e41f1-9d9c-7af1-a334-1b34096de4d2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e41f1-9d9c-7829-bd6d-216b8cf39a68" xlink:to="loc_us-gaap_LiabilitiesCurrent_019e41f1-9d9c-7af1-a334-1b34096de4d2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLongTermDebtNoncurrent_019e41f1-9d9c-7dee-baf1-b3bc5f161813" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLongTermDebtNoncurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e41f1-9d9c-7829-bd6d-216b8cf39a68" xlink:to="loc_us-gaap_OtherLongTermDebtNoncurrent_019e41f1-9d9c-7dee-baf1-b3bc5f161813" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e41f1-9d9c-76ce-9a15-03eae07b5493" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019e41f1-9d9c-712a-b3e1-1846738e264b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e41f1-9d9c-76ce-9a15-03eae07b5493" xlink:to="loc_us-gaap_Liabilities_019e41f1-9d9c-712a-b3e1-1846738e264b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_019e41f1-9d9c-7155-bf8e-d77b9361cea5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e41f1-9d9c-76ce-9a15-03eae07b5493" xlink:to="loc_us-gaap_CommitmentsAndContingencies_019e41f1-9d9c-7155-bf8e-d77b9361cea5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019e41f1-9d9c-7f0c-8762-f44a7d7cc119" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e41f1-9d9c-76ce-9a15-03eae07b5493" xlink:to="loc_us-gaap_StockholdersEquity_019e41f1-9d9c-7f0c-8762-f44a7d7cc119" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019e41f1-9d9c-7056-9854-12ebb01747ef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_019e41f1-9d9c-7118-af04-c88f76b08b67" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e41f1-9d9c-7056-9854-12ebb01747ef" xlink:to="loc_us-gaap_CommonStockValue_019e41f1-9d9c-7118-af04-c88f76b08b67" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_019e41f1-9d9c-78ec-9227-6c73341f2c19" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e41f1-9d9c-7056-9854-12ebb01747ef" xlink:to="loc_us-gaap_AdditionalPaidInCapital_019e41f1-9d9c-78ec-9227-6c73341f2c19" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019e41f1-9d9c-7732-a7d0-6b04c86ee68d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e41f1-9d9c-7056-9854-12ebb01747ef" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019e41f1-9d9c-7732-a7d0-6b04c86ee68d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019e41f1-9d9c-7f8e-8ef3-e37fea48b7a9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e41f1-9d9c-7056-9854-12ebb01747ef" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019e41f1-9d9c-7f8e-8ef3-e37fea48b7a9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonValue_019e41f1-9d9c-7ce3-8fc7-c983b716b301" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockCommonValue"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e41f1-9d9c-7056-9854-12ebb01747ef" xlink:to="loc_us-gaap_TreasuryStockCommonValue_019e41f1-9d9c-7ce3-8fc7-c983b716b301" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.diamondeagleacquisitioncorporation.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="simple" xlink:href="dkng-20260630.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"/>
  <link:calculationLink xlink:role="http://www.diamondeagleacquisitioncorporation.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e41f1-9d9c-7815-9164-fb29e3e3d3bb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_019e41f1-9d9c-7492-8140-74396dbc1d81" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e41f1-9d9c-7815-9164-fb29e3e3d3bb" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_019e41f1-9d9c-7492-8140-74396dbc1d81" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019e41f1-9d9c-787c-9eaa-6a681c570f39" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e41f1-9d9c-7815-9164-fb29e3e3d3bb" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019e41f1-9d9c-787c-9eaa-6a681c570f39" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_019e41f1-9d9c-7232-955d-0afcea997623" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e41f1-9d9c-7815-9164-fb29e3e3d3bb" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_019e41f1-9d9c-7232-955d-0afcea997623" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019e41f1-9d9c-7e3d-9497-257653a9b103" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_019e41f1-9d9c-7b1a-b009-49e171324717" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019e41f1-9d9c-7e3d-9497-257653a9b103" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_019e41f1-9d9c-7b1a-b009-49e171324717" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_019e41f1-9d9c-735c-b6ce-2064e19087c3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfRevenue"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019e41f1-9d9c-7e3d-9497-257653a9b103" xlink:to="loc_us-gaap_CostOfRevenue_019e41f1-9d9c-735c-b6ce-2064e19087c3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingAndMarketingExpense_019e41f1-9d9c-7ece-9530-8212a94c775e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SellingAndMarketingExpense"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019e41f1-9d9c-7e3d-9497-257653a9b103" xlink:to="loc_us-gaap_SellingAndMarketingExpense_019e41f1-9d9c-7ece-9530-8212a94c775e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_ProductAndTechnologyExpense_019e41f1-9d9c-7d5b-a151-ec558a5a20c7" xlink:href="dkng-20260630.xsd#dkng_ProductAndTechnologyExpense"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019e41f1-9d9c-7e3d-9497-257653a9b103" xlink:to="loc_dkng_ProductAndTechnologyExpense_019e41f1-9d9c-7d5b-a151-ec558a5a20c7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_019e41f1-9d9c-71b5-bf21-1fe461bce35e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019e41f1-9d9c-7e3d-9497-257653a9b103" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_019e41f1-9d9c-71b5-bf21-1fe461bce35e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_019e41f1-9d9c-71ec-bd30-6ab2701b646f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_019e41f1-9d9c-700c-8a35-72609fdd0145" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_019e41f1-9d9c-71ec-bd30-6ab2701b646f" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_019e41f1-9d9c-700c-8a35-72609fdd0145" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019e41f1-9d9c-73dc-95ca-8cc46bf9d8fc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_019e41f1-9d9c-71ec-bd30-6ab2701b646f" xlink:to="loc_us-gaap_OperatingIncomeLoss_019e41f1-9d9c-73dc-95ca-8cc46bf9d8fc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_019e41f1-9d9c-79c9-a401-44fcaf35f20a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeExpenseNonoperatingNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_019e41f1-9d9c-71ec-bd30-6ab2701b646f" xlink:to="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_019e41f1-9d9c-79c9-a401-44fcaf35f20a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAdjustmentOfWarrants_019e41f1-9d9c-74a6-bd20-f3d0a3e9b7d2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAdjustmentOfWarrants"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_019e41f1-9d9c-71ec-bd30-6ab2701b646f" xlink:to="loc_us-gaap_FairValueAdjustmentOfWarrants_019e41f1-9d9c-74a6-bd20-f3d0a3e9b7d2" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.diamondeagleacquisitioncorporation.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="simple" xlink:href="dkng-20260630.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"/>
  <link:calculationLink xlink:role="http://www.diamondeagleacquisitioncorporation.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e41f1-9d9c-778f-8534-650dee547bfc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_019e41f1-9d9c-79dc-bacc-e17e40f04874" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e41f1-9d9c-778f-8534-650dee547bfc" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_019e41f1-9d9c-79dc-bacc-e17e40f04874" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_019e41f1-9d9c-7121-b888-3c4fc7a1b028" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RepaymentsOfLongTermDebt"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e41f1-9d9c-778f-8534-650dee547bfc" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebt_019e41f1-9d9c-7121-b888-3c4fc7a1b028" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_019e41f1-9d9c-7e8d-afd2-e2a5fd608ab0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e41f1-9d9c-778f-8534-650dee547bfc" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_019e41f1-9d9c-7e8d-afd2-e2a5fd608ab0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_019e41f1-9d9c-700f-b651-5c918be999c6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e41f1-9d9c-778f-8534-650dee547bfc" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_019e41f1-9d9c-700f-b651-5c918be999c6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_019e41f1-9d9c-7da5-816d-635efed36070" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromStockOptionsExercised"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e41f1-9d9c-778f-8534-650dee547bfc" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_019e41f1-9d9c-7da5-816d-635efed36070" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_019e41f1-9d9c-767c-94e2-255bc22973c7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e41f1-9d9c-778f-8534-650dee547bfc" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_019e41f1-9d9c-767c-94e2-255bc22973c7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockPlans_019e82e6-c996-7077-b720-d4f4a4f7fe3b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromStockPlans"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e41f1-9d9c-778f-8534-650dee547bfc" xlink:to="loc_us-gaap_ProceedsFromStockPlans_019e82e6-c996-7077-b720-d4f4a4f7fe3b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e41f1-9d9c-7a6d-9b34-d346f4c4d2e5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e41f1-9d9c-708b-9646-7d7a179c84ea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e41f1-9d9c-7a6d-9b34-d346f4c4d2e5" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e41f1-9d9c-708b-9646-7d7a179c84ea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e41f1-9d9c-7a8a-83a9-701e0b100ab0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e41f1-9d9c-7a6d-9b34-d346f4c4d2e5" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e41f1-9d9c-7a8a-83a9-701e0b100ab0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e41f1-9d9c-7861-8c66-a92d102d5505" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e41f1-9d9c-7a6d-9b34-d346f4c4d2e5" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e41f1-9d9c-7861-8c66-a92d102d5505" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e41f1-9d9c-7f9a-a188-450fabf6149f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019e41f1-9d9c-77d3-a573-0a969278af1f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e41f1-9d9c-7f9a-a188-450fabf6149f" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019e41f1-9d9c-77d3-a573-0a969278af1f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToDevelopSoftware_019e41f1-9d9c-7183-9aff-85181de34de5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToDevelopSoftware"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e41f1-9d9c-7f9a-a188-450fabf6149f" xlink:to="loc_us-gaap_PaymentsToDevelopSoftware_019e41f1-9d9c-7183-9aff-85181de34de5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_AcquisitionOfGamingLicenses_019e41f1-9d9c-7fc1-bd8a-2d338f4c4b70" xlink:href="dkng-20260630.xsd#dkng_AcquisitionOfGamingLicenses"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e41f1-9d9c-7f9a-a188-450fabf6149f" xlink:to="loc_dkng_AcquisitionOfGamingLicenses_019e41f1-9d9c-7fc1-bd8a-2d338f4c4b70" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_019e41f1-9d9c-75d2-a146-0e22e680959a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e41f1-9d9c-7f9a-a188-450fabf6149f" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_019e41f1-9d9c-75d2-a146-0e22e680959a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019e41f1-9d9c-749e-991c-d4e6e43564a0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashCurrent_019e41f1-9d9c-714e-9ccd-ec7769a5c7ee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCashCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019e41f1-9d9c-749e-991c-d4e6e43564a0" xlink:to="loc_us-gaap_RestrictedCashCurrent_019e41f1-9d9c-714e-9ccd-ec7769a5c7ee" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_CashReservedForUsersCurrent_019e41f1-9d9c-7c73-88c0-5c7e684e7f97" xlink:href="dkng-20260630.xsd#dkng_CashReservedForUsersCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019e41f1-9d9c-749e-991c-d4e6e43564a0" xlink:to="loc_dkng_CashReservedForUsersCurrent_019e41f1-9d9c-7c73-88c0-5c7e684e7f97" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019e41f1-9d9c-7c33-9a35-c51f4b10b912" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019e41f1-9d9c-749e-991c-d4e6e43564a0" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019e41f1-9d9c-7c33-9a35-c51f4b10b912" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e41f1-9d9c-7991-99d2-e8ea27745b88" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAdjustmentOfWarrants_019e41f1-9d9c-76b8-9a28-daf6654620aa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAdjustmentOfWarrants"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e41f1-9d9c-7991-99d2-e8ea27745b88" xlink:to="loc_us-gaap_FairValueAdjustmentOfWarrants_019e41f1-9d9c-76b8-9a28-daf6654620aa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_IncreaseDecreaseInLiabilitiesToUsers_019e41f1-9d9c-7a85-9892-d8d8e144f928" xlink:href="dkng-20260630.xsd#dkng_IncreaseDecreaseInLiabilitiesToUsers"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e41f1-9d9c-7991-99d2-e8ea27745b88" xlink:to="loc_dkng_IncreaseDecreaseInLiabilitiesToUsers_019e41f1-9d9c-7a85-9892-d8d8e144f928" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e41f1-9d9c-7ab5-a61f-08819b2de0cb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e41f1-9d9c-7991-99d2-e8ea27745b88" xlink:to="loc_us-gaap_NetIncomeLoss_019e41f1-9d9c-7ab5-a61f-08819b2de0cb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_019e41f1-9d9c-7ac7-aea7-14ffcc2748f5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e41f1-9d9c-7991-99d2-e8ea27745b88" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_019e41f1-9d9c-7ac7-aea7-14ffcc2748f5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_019e41f1-9d9c-72fa-befe-9b8a98988b9e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e41f1-9d9c-7991-99d2-e8ea27745b88" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_019e41f1-9d9c-72fa-befe-9b8a98988b9e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities_019e41f1-9d9c-7b47-bc52-165f1d281b46" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e41f1-9d9c-7991-99d2-e8ea27745b88" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities_019e41f1-9d9c-7b47-bc52-165f1d281b46" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_PaidInKindInterestIncomeExpenseNet_019e41f1-9d9c-7030-acbc-ec64434e6116" xlink:href="dkng-20260630.xsd#dkng_PaidInKindInterestIncomeExpenseNet"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e41f1-9d9c-7991-99d2-e8ea27745b88" xlink:to="loc_dkng_PaidInKindInterestIncomeExpenseNet_019e41f1-9d9c-7030-acbc-ec64434e6116" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_019e41f1-9d9c-7424-b7a5-83f2d0ac54c6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e41f1-9d9c-7991-99d2-e8ea27745b88" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_019e41f1-9d9c-7424-b7a5-83f2d0ac54c6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_019e41f1-9d9c-7602-b6bd-63c2263517fc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e41f1-9d9c-7991-99d2-e8ea27745b88" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_019e41f1-9d9c-7602-b6bd-63c2263517fc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_019e41f1-9d9c-794f-91ad-c278d768e534" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNoncashIncomeExpense"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e41f1-9d9c-7991-99d2-e8ea27745b88" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_019e41f1-9d9c-794f-91ad-c278d768e534" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_019e41f1-9d9c-7ba3-9a43-a04d51b982fd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e41f1-9d9c-7991-99d2-e8ea27745b88" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_019e41f1-9d9c-7ba3-9a43-a04d51b982fd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_IncreaseDecreaseInDepositsAndOtherNonCurrentAssets_019e41f1-9d9c-7ab0-8e6e-660de0eaa06b" xlink:href="dkng-20260630.xsd#dkng_IncreaseDecreaseInDepositsAndOtherNonCurrentAssets"/>
    <link:calculationArc order="12" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e41f1-9d9c-7991-99d2-e8ea27745b88" xlink:to="loc_dkng_IncreaseDecreaseInDepositsAndOtherNonCurrentAssets_019e41f1-9d9c-7ab0-8e6e-660de0eaa06b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_019e41f1-9d9c-7c95-bd42-84a5f7b56da1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e41f1-9d9c-7991-99d2-e8ea27745b88" xlink:to="loc_us-gaap_ShareBasedCompensation_019e41f1-9d9c-7c95-bd42-84a5f7b56da1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAmortizationAndAccretionNet_019e41f1-9d9c-7f07-9f11-44ae0acc798a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationAmortizationAndAccretionNet"/>
    <link:calculationArc order="14" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e41f1-9d9c-7991-99d2-e8ea27745b88" xlink:to="loc_us-gaap_DepreciationAmortizationAndAccretionNet_019e41f1-9d9c-7f07-9f11-44ae0acc798a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_019e41f1-9d9c-7532-bf0e-34cd0ea35fb9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="15" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e41f1-9d9c-7991-99d2-e8ea27745b88" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_019e41f1-9d9c-7532-bf0e-34cd0ea35fb9" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.diamondeagleacquisitioncorporation.com/role/BusinessCombinationsSummaryofConsiderationTransferredatClosingDetails" xlink:type="simple" xlink:href="dkng-20260630.xsd#BusinessCombinationsSummaryofConsiderationTransferredatClosingDetails"/>
  <link:calculationLink xlink:role="http://www.diamondeagleacquisitioncorporation.com/role/BusinessCombinationsSummaryofConsiderationTransferredatClosingDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_019e41f1-9d9c-7bc7-ab50-0c12b20e3f90" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationConsiderationTransferred1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_019e41f1-9d9c-7c52-856f-2eba36693fff" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquireBusinessesGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationConsiderationTransferred1_019e41f1-9d9c-7bc7-ab50-0c12b20e3f90" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_019e41f1-9d9c-7c52-856f-2eba36693fff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_019e41f1-9d9c-7a00-a4dc-4b7874996cb1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationConsiderationTransferred1_019e41f1-9d9c-7bc7-ab50-0c12b20e3f90" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_019e41f1-9d9c-7a00-a4dc-4b7874996cb1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred_019e41f1-9d9c-7c6e-983a-d487b6abd163" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationConsiderationTransferred1_019e41f1-9d9c-7bc7-ab50-0c12b20e3f90" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred_019e41f1-9d9c-7c6e-983a-d487b6abd163" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.diamondeagleacquisitioncorporation.com/role/BusinessCombinationsSummaryofAcquisitionPurchasePriceDetails" xlink:type="simple" xlink:href="dkng-20260630.xsd#BusinessCombinationsSummaryofAcquisitionPurchasePriceDetails"/>
  <link:calculationLink xlink:role="http://www.diamondeagleacquisitioncorporation.com/role/BusinessCombinationsSummaryofAcquisitionPurchasePriceDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_019e41f1-9d9c-7358-8af3-b739ee479540" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_019e41f1-9d9c-73bb-9a54-d2877ae3bd90" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_019e41f1-9d9c-7358-8af3-b739ee479540" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_019e41f1-9d9c-73bb-9a54-d2877ae3bd90" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_BusinessCombinationRecognizedAssetAcquiredRestrictedCash_019e41f1-9d9c-734e-a285-ba7ac9811481" xlink:href="dkng-20260630.xsd#dkng_BusinessCombinationRecognizedAssetAcquiredRestrictedCash"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_019e41f1-9d9c-7358-8af3-b739ee479540" xlink:to="loc_dkng_BusinessCombinationRecognizedAssetAcquiredRestrictedCash_019e41f1-9d9c-734e-a285-ba7ac9811481" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_019e41f1-9d9c-76c3-af9f-c8c064210536" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_019e41f1-9d9c-7358-8af3-b739ee479540" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_019e41f1-9d9c-76c3-af9f-c8c064210536" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDepositsAndOtherNoncurrentAssets_019e41f1-9d9c-7051-80af-ca4e6e90fd9c" xlink:href="dkng-20260630.xsd#dkng_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDepositsAndOtherNoncurrentAssets"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_019e41f1-9d9c-7358-8af3-b739ee479540" xlink:to="loc_dkng_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDepositsAndOtherNoncurrentAssets_019e41f1-9d9c-7051-80af-ca4e6e90fd9c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019e41f1-9d9c-71aa-a2e7-cd4ba98b78ab" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019e41f1-9d9c-74c7-83d9-e8aaf52fe010" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019e41f1-9d9c-71aa-a2e7-cd4ba98b78ab" xlink:to="loc_us-gaap_Goodwill_019e41f1-9d9c-74c7-83d9-e8aaf52fe010" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019e41f1-9d9c-74af-b31e-8c6716aa3b2a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019e41f1-9d9c-71aa-a2e7-cd4ba98b78ab" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019e41f1-9d9c-74af-b31e-8c6716aa3b2a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_019e41f1-9d9c-7d15-9b32-70bc2a16d329" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther_019e41f1-9d9c-7297-9b43-b5fa075cac48" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_019e41f1-9d9c-7d15-9b32-70bc2a16d329" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther_019e41f1-9d9c-7297-9b43-b5fa075cac48" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayableAndAccruedExpenses_019e41f1-9e73-77ce-a958-878329a8f367" xlink:href="dkng-20260630.xsd#dkng_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayableAndAccruedExpenses"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_019e41f1-9d9c-7d15-9b32-70bc2a16d329" xlink:to="loc_dkng_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayableAndAccruedExpenses_019e41f1-9e73-77ce-a958-878329a8f367" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019e41f1-9d9c-72a9-8336-ad13dd51f549" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_019e41f1-9d9c-76e5-8b49-de004e9d827e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019e41f1-9d9c-72a9-8336-ad13dd51f549" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_019e41f1-9d9c-76e5-8b49-de004e9d827e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_019e41f1-9d9c-7b89-a852-59069cbd5363" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019e41f1-9d9c-72a9-8336-ad13dd51f549" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_019e41f1-9d9c-7b89-a852-59069cbd5363" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.diamondeagleacquisitioncorporation.com/role/IntangibleAssetsScheduleofIntangibleAssetsDetails" xlink:type="simple" xlink:href="dkng-20260630.xsd#IntangibleAssetsScheduleofIntangibleAssetsDetails"/>
  <link:calculationLink xlink:role="http://www.diamondeagleacquisitioncorporation.com/role/IntangibleAssetsScheduleofIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e41f1-9e73-7b0d-a7d0-d84e1cf18134" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_019e41f1-9e73-7fc8-a857-905aafa94315" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e41f1-9e73-7b0d-a7d0-d84e1cf18134" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_019e41f1-9e73-7fc8-a857-905aafa94315" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_019e41f1-9e73-7f5c-ba38-40ea752f3f72" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e41f1-9e73-7b0d-a7d0-d84e1cf18134" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_019e41f1-9e73-7f5c-ba38-40ea752f3f72" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.diamondeagleacquisitioncorporation.com/role/CurrentandLongtermLiabilitiesScheduleofMaturitiesofLongTermDebtDetails" xlink:type="simple" xlink:href="dkng-20260630.xsd#CurrentandLongtermLiabilitiesScheduleofMaturitiesofLongTermDebtDetails"/>
  <link:calculationLink xlink:role="http://www.diamondeagleacquisitioncorporation.com/role/CurrentandLongtermLiabilitiesScheduleofMaturitiesofLongTermDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019e41f1-9e73-7525-8517-17104bd78a4d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_019e41f1-9e73-74a8-9e9e-9383b347f511" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_019e41f1-9e73-7525-8517-17104bd78a4d" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_019e41f1-9e73-74a8-9e9e-9383b347f511" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_019e41f1-9e73-73a0-bccb-df8073525bb1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_019e41f1-9e73-7525-8517-17104bd78a4d" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_019e41f1-9e73-73a0-bccb-df8073525bb1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_019e41f1-9e73-714d-90fb-c94de949354d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_019e41f1-9e73-7525-8517-17104bd78a4d" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_019e41f1-9e73-714d-90fb-c94de949354d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_019e41f1-9e73-70bc-a695-07b0cf3a0ac6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_019e41f1-9e73-7525-8517-17104bd78a4d" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_019e41f1-9e73-70bc-a695-07b0cf3a0ac6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_019e41f1-9e73-7c34-8b7e-db1fcdd83cee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_019e41f1-9e73-7525-8517-17104bd78a4d" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_019e41f1-9e73-7c34-8b7e-db1fcdd83cee" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_LongTermDebtMaturityAfterYearFour_019e41f1-9e73-732f-b8be-ae0d49e01051" xlink:href="dkng-20260630.xsd#dkng_LongTermDebtMaturityAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_019e41f1-9e73-7525-8517-17104bd78a4d" xlink:to="loc_dkng_LongTermDebtMaturityAfterYearFour_019e41f1-9e73-732f-b8be-ae0d49e01051" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.diamondeagleacquisitioncorporation.com/role/FairValueMeasurementsSummaryofAssetsandLiabilitiesMeasuredatFairValueDetails" xlink:type="simple" xlink:href="dkng-20260630.xsd#FairValueMeasurementsSummaryofAssetsandLiabilitiesMeasuredatFairValueDetails"/>
  <link:calculationLink xlink:role="http://www.diamondeagleacquisitioncorporation.com/role/FairValueMeasurementsSummaryofAssetsandLiabilitiesMeasuredatFairValueDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosure_019e41f1-9e73-7b9a-8cf3-a25b1c7f97eb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesFairValueDisclosure"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_019e41f1-9e73-72af-897c-b3cd01eb1e19" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosure_019e41f1-9e73-7b9a-8cf3-a25b1c7f97eb" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_019e41f1-9e73-72af-897c-b3cd01eb1e19" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent_019e41f1-9e73-72a4-b8e4-e4c3a73c678c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosure_019e41f1-9e73-7b9a-8cf3-a25b1c7f97eb" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent_019e41f1-9e73-72a4-b8e4-e4c3a73c678c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_019e41f1-9e73-7658-bdd8-0b6c13c333ff" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFVNINoncurrent_019e41f1-9e73-7994-9a63-8f70b1e153ea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquitySecuritiesFVNINoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_019e41f1-9e73-7658-bdd8-0b6c13c333ff" xlink:to="loc_us-gaap_EquitySecuritiesFVNINoncurrent_019e41f1-9e73-7994-9a63-8f70b1e153ea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssetsNoncurrent_019e41f1-9e73-7714-aa69-b7af7c6460dd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeAssetsNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_019e41f1-9e73-7658-bdd8-0b6c13c333ff" xlink:to="loc_us-gaap_DerivativeAssetsNoncurrent_019e41f1-9e73-7714-aa69-b7af7c6460dd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_019e41f1-9e73-7dc6-bf2a-4fad8d910242" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_019e41f1-9e73-7658-bdd8-0b6c13c333ff" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_019e41f1-9e73-7dc6-bf2a-4fad8d910242" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.diamondeagleacquisitioncorporation.com/role/StockBasedCompensationSummaryofStockOptionandRestrictedStockUnitActivityDetails" xlink:type="simple" xlink:href="dkng-20260630.xsd#StockBasedCompensationSummaryofStockOptionandRestrictedStockUnitActivityDetails"/>
  <link:calculationLink xlink:role="http://www.diamondeagleacquisitioncorporation.com/role/StockBasedCompensationSummaryofStockOptionandRestrictedStockUnitActivityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dkng_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherIncreasesDecreasesInPeriod_019e41f1-9e73-71cc-9323-e353a8249b88" xlink:href="dkng-20260630.xsd#dkng_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherIncreasesDecreasesInPeriod"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOtherIncreasesDecreasesInPeriod_019e41f1-9e73-75c1-b4ab-0b6ea85a0c7a" xlink:href="dkng-20260630.xsd#dkng_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOtherIncreasesDecreasesInPeriod"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_dkng_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherIncreasesDecreasesInPeriod_019e41f1-9e73-71cc-9323-e353a8249b88" xlink:to="loc_dkng_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOtherIncreasesDecreasesInPeriod_019e41f1-9e73-75c1-b4ab-0b6ea85a0c7a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOtherIncreasesDecreasesInPeriod_019e41f1-9e73-7b90-b1fe-b94b6a6289b6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOtherIncreasesDecreasesInPeriod"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_dkng_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherIncreasesDecreasesInPeriod_019e41f1-9e73-71cc-9323-e353a8249b88" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOtherIncreasesDecreasesInPeriod_019e41f1-9e73-7b90-b1fe-b94b6a6289b6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantsInPeriodGross_019e41f1-9e73-7aa2-96e6-6f3a25bbcea5" xlink:href="dkng-20260630.xsd#dkng_ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantsInPeriodGross"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_019e41f1-9e73-7865-9839-c3bf11d2bc89" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_dkng_ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantsInPeriodGross_019e41f1-9e73-7aa2-96e6-6f3a25bbcea5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_019e41f1-9e73-7865-9839-c3bf11d2bc89" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_019e41f1-9e73-7a57-b1fc-4a1e9fbbfac4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_dkng_ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantsInPeriodGross_019e41f1-9e73-7aa2-96e6-6f3a25bbcea5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_019e41f1-9e73-7a57-b1fc-4a1e9fbbfac4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_ShareBasedCompensationArrangementByShareBasedPaymentAwardForfeituresInPeriod_019e41f1-9e73-74a2-8243-6c354d44b9ea" xlink:href="dkng-20260630.xsd#dkng_ShareBasedCompensationArrangementByShareBasedPaymentAwardForfeituresInPeriod"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_019e41f1-9e73-7b67-bd95-98963421de92" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_dkng_ShareBasedCompensationArrangementByShareBasedPaymentAwardForfeituresInPeriod_019e41f1-9e73-74a2-8243-6c354d44b9ea" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_019e41f1-9e73-7b67-bd95-98963421de92" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_019e41f1-9e73-714c-a0af-ae4683a56fb8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_dkng_ShareBasedCompensationArrangementByShareBasedPaymentAwardForfeituresInPeriod_019e41f1-9e73-74a2-8243-6c354d44b9ea" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_019e41f1-9e73-714c-a0af-ae4683a56fb8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_ShareBasedCompensationArrangementByShareBasedPaymentAwardExercisesInPeriod_019e41f1-9e73-78b4-bfcf-d039fbcca34b" xlink:href="dkng-20260630.xsd#dkng_ShareBasedCompensationArrangementByShareBasedPaymentAwardExercisesInPeriod"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_019e41f1-9e73-7ab2-8dc0-970db06e442a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_dkng_ShareBasedCompensationArrangementByShareBasedPaymentAwardExercisesInPeriod_019e41f1-9e73-78b4-bfcf-d039fbcca34b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_019e41f1-9e73-7ab2-8dc0-970db06e442a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_019e41f1-9e73-72c3-96c8-6cda6f2a481e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_dkng_ShareBasedCompensationArrangementByShareBasedPaymentAwardExercisesInPeriod_019e41f1-9e73-78b4-bfcf-d039fbcca34b" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_019e41f1-9e73-72c3-96c8-6cda6f2a481e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_ShareBasedCompensationArrangementByShareBasedPaymentAwardOutstandingNumber_019e41f1-9e73-7b16-ba61-6c112a1524b4" xlink:href="dkng-20260630.xsd#dkng_ShareBasedCompensationArrangementByShareBasedPaymentAwardOutstandingNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019e41f1-9e73-7e6f-8b33-98add3bfd423" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_dkng_ShareBasedCompensationArrangementByShareBasedPaymentAwardOutstandingNumber_019e41f1-9e73-7b16-ba61-6c112a1524b4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019e41f1-9e73-7e6f-8b33-98add3bfd423" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_019e41f1-9e73-70ad-a320-9283311c984f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_dkng_ShareBasedCompensationArrangementByShareBasedPaymentAwardOutstandingNumber_019e41f1-9e73-7b16-ba61-6c112a1524b4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_019e41f1-9e73-70ad-a320-9283311c984f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.diamondeagleacquisitioncorporation.com/role/StockBasedCompensationSummaryofStockCompensationExpenseDetails" xlink:type="simple" xlink:href="dkng-20260630.xsd#StockBasedCompensationSummaryofStockCompensationExpenseDetails"/>
  <link:calculationLink xlink:role="http://www.diamondeagleacquisitioncorporation.com/role/StockBasedCompensationSummaryofStockCompensationExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_019e41f1-9e73-7b29-bf06-c5e1f9ec0984" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_AllocatedShareBasedCompensationExpenseStockOptions_019e41f1-9e73-73a5-9067-d342b9391472" xlink:href="dkng-20260630.xsd#dkng_AllocatedShareBasedCompensationExpenseStockOptions"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AllocatedShareBasedCompensationExpense_019e41f1-9e73-7b29-bf06-c5e1f9ec0984" xlink:to="loc_dkng_AllocatedShareBasedCompensationExpenseStockOptions_019e41f1-9e73-73a5-9067-d342b9391472" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_AllocatedShareBasedCompensationExpenseShareBasedAwardsOtherThanOptions_019e41f1-9e73-7138-97dc-e7fa68c04f95" xlink:href="dkng-20260630.xsd#dkng_AllocatedShareBasedCompensationExpenseShareBasedAwardsOtherThanOptions"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AllocatedShareBasedCompensationExpense_019e41f1-9e73-7b29-bf06-c5e1f9ec0984" xlink:to="loc_dkng_AllocatedShareBasedCompensationExpenseShareBasedAwardsOtherThanOptions_019e41f1-9e73-7138-97dc-e7fa68c04f95" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.diamondeagleacquisitioncorporation.com/role/SegmentInformationSummaryofFinancialInformationfortheCompanysSegmentsDetails" xlink:type="simple" xlink:href="dkng-20260630.xsd#SegmentInformationSummaryofFinancialInformationfortheCompanysSegmentsDetails"/>
  <link:calculationLink xlink:role="http://www.diamondeagleacquisitioncorporation.com/role/SegmentInformationSummaryofFinancialInformationfortheCompanysSegmentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e41f1-9e73-7996-80c2-36bbf3b50593" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019e41f1-9e73-7640-b5cc-d031673f74d9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e41f1-9e73-7996-80c2-36bbf3b50593" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019e41f1-9e73-7640-b5cc-d031673f74d9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_CostOfRevenueGamingTaxes_019e41f1-9e73-76f4-adba-a651d22e0393" xlink:href="dkng-20260630.xsd#dkng_CostOfRevenueGamingTaxes"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e41f1-9e73-7996-80c2-36bbf3b50593" xlink:to="loc_dkng_CostOfRevenueGamingTaxes_019e41f1-9e73-76f4-adba-a651d22e0393" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_CostOfRevenueOther_019e41f1-9e73-72da-a152-fa4505342470" xlink:href="dkng-20260630.xsd#dkng_CostOfRevenueOther"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e41f1-9e73-7996-80c2-36bbf3b50593" xlink:to="loc_dkng_CostOfRevenueOther_019e41f1-9e73-72da-a152-fa4505342470" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_AdjustedSellingAndMarketingExpense_019e41f1-9e73-76bb-89e8-2ab55451d5f6" xlink:href="dkng-20260630.xsd#dkng_AdjustedSellingAndMarketingExpense"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e41f1-9e73-7996-80c2-36bbf3b50593" xlink:to="loc_dkng_AdjustedSellingAndMarketingExpense_019e41f1-9e73-76bb-89e8-2ab55451d5f6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_AdjustedProductAndTechnologyExpense_019e41f1-9e73-713f-bceb-a1a32b5e61bb" xlink:href="dkng-20260630.xsd#dkng_AdjustedProductAndTechnologyExpense"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e41f1-9e73-7996-80c2-36bbf3b50593" xlink:to="loc_dkng_AdjustedProductAndTechnologyExpense_019e41f1-9e73-713f-bceb-a1a32b5e61bb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_AdjustedGeneralAndAdministrativeExpense_019e41f1-9e73-744c-adb4-25ee16ebc31b" xlink:href="dkng-20260630.xsd#dkng_AdjustedGeneralAndAdministrativeExpense"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e41f1-9e73-7996-80c2-36bbf3b50593" xlink:to="loc_dkng_AdjustedGeneralAndAdministrativeExpense_019e41f1-9e73-744c-adb4-25ee16ebc31b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAmortizationAndAccretionNet_019e41f1-9e73-7dd0-acae-c36474ec5d52" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationAmortizationAndAccretionNet"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e41f1-9e73-7996-80c2-36bbf3b50593" xlink:to="loc_us-gaap_DepreciationAmortizationAndAccretionNet_019e41f1-9e73-7dd0-acae-c36474ec5d52" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_019e41f1-9e73-745e-a19f-9b64a4e029f4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e41f1-9e73-7996-80c2-36bbf3b50593" xlink:to="loc_us-gaap_ShareBasedCompensation_019e41f1-9e73-745e-a19f-9b64a4e029f4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019e41f1-9e73-729f-b790-a213000d4bb3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e41f1-9e73-7996-80c2-36bbf3b50593" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019e41f1-9e73-729f-b790-a213000d4bb3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingOtherItemAmount_019e41f1-9e73-7fb0-9551-fcafd38b8b06" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingOtherItemAmount"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e41f1-9e73-7996-80c2-36bbf3b50593" xlink:to="loc_us-gaap_SegmentReportingOtherItemAmount_019e41f1-9e73-7fb0-9551-fcafd38b8b06" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_019e41f1-9e73-76f4-96a0-cfc69ef39cd2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeExpenseNonoperatingNet"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e41f1-9e73-7996-80c2-36bbf3b50593" xlink:to="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_019e41f1-9e73-76f4-96a0-cfc69ef39cd2" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.diamondeagleacquisitioncorporation.com/role/EarningsLossPerShareSummaryofLossPerShareandWeightedAverageSharesDetails" xlink:type="simple" xlink:href="dkng-20260630.xsd#EarningsLossPerShareSummaryofLossPerShareandWeightedAverageSharesDetails"/>
  <link:calculationLink xlink:role="http://www.diamondeagleacquisitioncorporation.com/role/EarningsLossPerShareSummaryofLossPerShareandWeightedAverageSharesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_019e41f1-9e73-7854-ac9c-f69f8adcc4d5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e41f1-9e73-7aa7-8826-cd7682e84af0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_019e41f1-9e73-7854-ac9c-f69f8adcc4d5" xlink:to="loc_us-gaap_NetIncomeLoss_019e41f1-9e73-7aa7-8826-cd7682e84af0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_DilutiveSecuritiesEffectOnBasicEarningsPerShareContingentConsiderationRemeasurementGain_019e41f1-9e73-7a13-b0dc-3e8b29658841" xlink:href="dkng-20260630.xsd#dkng_DilutiveSecuritiesEffectOnBasicEarningsPerShareContingentConsiderationRemeasurementGain"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_019e41f1-9e73-7854-ac9c-f69f8adcc4d5" xlink:to="loc_dkng_DilutiveSecuritiesEffectOnBasicEarningsPerShareContingentConsiderationRemeasurementGain_019e41f1-9e73-7a13-b0dc-3e8b29658841" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e41f1-9e73-7ae2-8157-d5d3160ed059" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019e41f1-9e73-7e6d-97d6-4523b94ba42e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e41f1-9e73-7ae2-8157-d5d3160ed059" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019e41f1-9e73-7e6d-97d6-4523b94ba42e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToContingentlyIssuableShares_019e41f1-9e73-7000-b8f7-ec407f33fc7c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncrementalCommonSharesAttributableToContingentlyIssuableShares"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e41f1-9e73-7ae2-8157-d5d3160ed059" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToContingentlyIssuableShares_019e41f1-9e73-7000-b8f7-ec407f33fc7c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_019e41f1-9e73-7ba5-9615-bd11ccae2933" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e41f1-9e73-7ae2-8157-d5d3160ed059" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_019e41f1-9e73-7ba5-9615-bd11ccae2933" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities_019e964b-b0ca-74b4-8ca7-27cf653bfc73" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e41f1-9e73-7ae2-8157-d5d3160ed059" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities_019e964b-b0ca-74b4-8ca7-27cf653bfc73" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants_019e964b-b0ca-744f-bc50-e0d1a12ba74f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e41f1-9e73-7ae2-8157-d5d3160ed059" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants_019e964b-b0ca-744f-bc50-e0d1a12ba74f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.diamondeagleacquisitioncorporation.com/role/CommitmentsandContingenciesSummaryofContractualObligationsandContingenciesDetails" xlink:type="simple" xlink:href="dkng-20260630.xsd#CommitmentsandContingenciesSummaryofContractualObligationsandContingenciesDetails"/>
  <link:calculationLink xlink:role="http://www.diamondeagleacquisitioncorporation.com/role/CommitmentsandContingenciesSummaryofContractualObligationsandContingenciesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitment_019e41f1-9e73-74b9-b297-0102753ae3d1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherCommitment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentDueInNextTwelveMonths_019e41f1-9e73-7924-a261-35e831d6e501" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherCommitmentDueInNextTwelveMonths"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherCommitment_019e41f1-9e73-74b9-b297-0102753ae3d1" xlink:to="loc_us-gaap_OtherCommitmentDueInNextTwelveMonths_019e41f1-9e73-7924-a261-35e831d6e501" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentDueInSecondYear_019e41f1-9e73-7612-a113-b46d9547837d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherCommitmentDueInSecondYear"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherCommitment_019e41f1-9e73-74b9-b297-0102753ae3d1" xlink:to="loc_us-gaap_OtherCommitmentDueInSecondYear_019e41f1-9e73-7612-a113-b46d9547837d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentDueInThirdYear_019e41f1-9e73-79d5-8198-f871835187a1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherCommitmentDueInThirdYear"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherCommitment_019e41f1-9e73-74b9-b297-0102753ae3d1" xlink:to="loc_us-gaap_OtherCommitmentDueInThirdYear_019e41f1-9e73-79d5-8198-f871835187a1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentDueInFourthYear_019e41f1-9e73-7f1b-b959-25b52f2f463c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherCommitmentDueInFourthYear"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherCommitment_019e41f1-9e73-74b9-b297-0102753ae3d1" xlink:to="loc_us-gaap_OtherCommitmentDueInFourthYear_019e41f1-9e73-7f1b-b959-25b52f2f463c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsFutureMinimumPaymentsRemainderOfFiscalYear_019e41f1-9e73-747f-8f8f-b2758eca54ef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherCommitmentsFutureMinimumPaymentsRemainderOfFiscalYear"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherCommitment_019e41f1-9e73-74b9-b297-0102753ae3d1" xlink:to="loc_us-gaap_OtherCommitmentsFutureMinimumPaymentsRemainderOfFiscalYear_019e41f1-9e73-747f-8f8f-b2758eca54ef" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_dkng_OtherCommitmentToBePaidDueAfterYearFour_019e41f1-9e73-7e3f-b078-a83f0ddd642c" xlink:href="dkng-20260630.xsd#dkng_OtherCommitmentToBePaidDueAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherCommitment_019e41f1-9e73-74b9-b297-0102753ae3d1" xlink:to="loc_dkng_OtherCommitmentToBePaidDueAfterYearFour_019e41f1-9e73-7e3f-b078-a83f0ddd642c" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
