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        <link:linkbaseRef xlink:type="simple" xlink:href="brun-20260331_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Presentation Links" />
        <link:linkbaseRef xlink:type="simple" xlink:href="brun-20260331_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Label Links" />
        <link:linkbaseRef xlink:type="simple" xlink:href="brun-20260331_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Calculation Links" />
        <link:linkbaseRef xlink:type="simple" xlink:href="brun-20260331_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Definition Links" />
      </appinfo>
    </annotation>
    <import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
    <import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
    <import namespace="http://xbrl.sec.gov/dei/2026" schemaLocation="https://xbrl.sec.gov/dei/2026/dei-2026.xsd" />
    <import namespace="http://fasb.org/us-gaap/2026" schemaLocation="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd" />
    <import namespace="http://fasb.org/us-types/2026" schemaLocation="https://xbrl.fasb.org/us-gaap/2026/elts/us-types-2026.xsd" />
    <import namespace="http://www.xbrl.org/dtr/type/2024-01-31" schemaLocation="https://www.xbrl.org/dtr/type/2024-01-31/types.xsd" />
    <import namespace="http://xbrl.sec.gov/country/2026" schemaLocation="https://xbrl.sec.gov/country/2026/country-2026.xsd" />
    <import namespace="http://fasb.org/srt/2026" schemaLocation="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd" />
    <import namespace="http://fasb.org/srt-types/2026" schemaLocation="https://xbrl.fasb.org/srt/2026/elts/srt-types-2026.xsd" />
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    <element id="BRUN_WarrantsEachWholeWarrantIsExercisableForOneShareOfClassCommonStockAtExercisePriceOf11.50PerShareMember" name="WarrantsEachWholeWarrantIsExercisableForOneShareOfClassCommonStockAtExercisePriceOf11.50PerShareMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_BoostRunHoldingsLLCMember" name="BoostRunHoldingsLLCMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
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    <element id="BRUN_BenchmarkMergerSubTwoLLCMember" name="BenchmarkMergerSubTwoLLCMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
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    <element id="BRUN_AmendedAndRestatedLLCAgreementMember" name="AmendedAndRestatedLLCAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
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    <element id="BRUN_BoostRunHoldingLLCMember" name="BoostRunHoldingLLCMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_WillowLaneSponsorLLCMember" name="WillowLaneSponsorLLCMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_GoodrichIlmjsLLCMember" name="GoodrichIlmjsLLCMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_ConsultingAgreementMember" name="ConsultingAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_ComputerHardwareMember" name="ComputerHardwareMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_ToolAndMachineMember" name="ToolAndMachineMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_FixedAssetsMember" name="FixedAssetsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_DigitalAssetReceivableMember" name="DigitalAssetReceivableMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_ColocationLeaseOneMember" name="ColocationLeaseOneMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_ColocationLeaseTwoMember" name="ColocationLeaseTwoMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_AugustTwoThousandTwentyFiveBridgeLoanAgreementMember" name="AugustTwoThousandTwentyFiveBridgeLoanAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_FebruaryTwoThousandTwentySixBridgeLoanAgreementMember" name="FebruaryTwoThousandTwentySixBridgeLoanAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_AugustTwoThousandTwentyFiveBridgeLoanMember" name="AugustTwoThousandTwentyFiveBridgeLoanMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_FebruaryTwoThousandTwentySixBridgeLoanMember" name="FebruaryTwoThousandTwentySixBridgeLoanMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_August2025WarrantMember" name="August2025WarrantMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_MAComparablesAnalysisMember" name="MAComparablesAnalysisMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_DeSPACScenarioMember" name="DeSPACScenarioMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_ProfitInterestUnitsMember" name="ProfitInterestUnitsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_WeightedAverageProfitInterestUnitParticipationThresholdMember" name="WeightedAverageProfitInterestUnitParticipationThresholdMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_CreditCardPayable" name="CreditCardPayable" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_LossInFairValueOfDigitalAssetReceivable" name="LossInFairValueOfDigitalAssetReceivable" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_StockIssuedDuringPeriodValueContributions" name="StockIssuedDuringPeriodValueContributions" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="BRUN_LossInChangeInFairValueOfDigitalAssetReceivable" name="LossInChangeInFairValueOfDigitalAssetReceivable" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_IncreaseDecreaseInAdvanceLeasePayments" name="IncreaseDecreaseInAdvanceLeasePayments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_IncreaseDecreaseInCreditCardPayable" name="IncreaseDecreaseInCreditCardPayable" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_FinanceLeasePrepayments" name="FinanceLeasePrepayments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_RightofuseAssetsObtainedInExchangeForNewFinanceLeaseLiabilities" name="RightofuseAssetsObtainedInExchangeForNewFinanceLeaseLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_RightofuseAssetsObtainedInExchangeForNewOperatingLeaseLiabilities" name="RightofuseAssetsObtainedInExchangeForNewOperatingLeaseLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_PurchasedFixedAssetsIncludedInAccountsPayable" name="PurchasedFixedAssetsIncludedInAccountsPayable" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_DeferredTransactionCostsIncludedInAccountsPayable" name="DeferredTransactionCostsIncludedInAccountsPayable" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_DisclosurePrepaidExpensesAbstract" name="DisclosurePrepaidExpensesAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_PrepaidExpensesDisclosureTextBlock" name="PrepaidExpensesDisclosureTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_DisclosureLeasesAbstract" name="DisclosureLeasesAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_EmergingGrowthCompanyStatusPolicyTextBlock" name="EmergingGrowthCompanyStatusPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_FixedAssetsNotInServicePolicyTextBlock" name="FixedAssetsNotInServicePolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_EmergingGrowthCompanyPolicyTextBlock" name="EmergingGrowthCompanyPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_AccountingPronouncementsNotYetAdoptedPolicyTextBlock" name="AccountingPronouncementsNotYetAdoptedPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_ScheduleOfPropertyPlantAndEquipmentEstimatedUsefulLifeTextBlock" name="ScheduleOfPropertyPlantAndEquipmentEstimatedUsefulLifeTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
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    <element id="BRUN_StockIssuedDuringPeriodOfEarnoutSharesTwo" name="StockIssuedDuringPeriodOfEarnoutSharesTwo" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
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    <element id="BRUN_OtherPrepaidExpenseNonCurrent" name="OtherPrepaidExpenseNonCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="BRUN_CustomerDeposits" name="CustomerDeposits" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_AccruedExpensesAndOtherCurrentLiabilitiesNoncurrent" name="AccruedExpensesAndOtherCurrentLiabilitiesNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearAfterYearThree" name="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearAfterYearThree" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_LineOfCreditFacilityInterestPrimeFloorRate" name="LineOfCreditFacilityInterestPrimeFloorRate" nillable="true" xbrli:periodType="instant" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_AmortizationOfPrincipalPercentageRate" name="AmortizationOfPrincipalPercentageRate" nillable="true" xbrli:periodType="instant" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_EquityInterestPercentage" name="EquityInterestPercentage" nillable="true" xbrli:periodType="instant" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="BRUN_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsVestedInPeriodWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsVestedInPeriodWeightedAverageExercisePrice" nillable="true" xbrli:periodType="duration" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
</schema>
