﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.irs.gov/efile" returnVersion="2023v6.0">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2025-03-26T08:29:24-05:00</ReturnTs>
    <TaxPeriodEndDt>2024-08-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>203985546</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>JOHNSON O'CONNOR FERON &amp; CARUCCI LLP</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>101 EDGEWATER DRIVE SUITE 210</AddressLine1Txt>
        <CityNm>WAKEFIELD</CityNm>
        <StateAbbreviationCd>MA</StateAbbreviationCd>
        <ZIPCd>01880</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-09-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>041145220</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>CAMBRIDGE SKATING CLUB</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>CAMB</BusinessNameControlTxt>
      <PhoneNum>6173549427</PhoneNum>
      <USAddress>
        <AddressLine1Txt>40 WILLARD STREET</AddressLine1Txt>
        <CityNm>CAMBRIDGE</CityNm>
        <StateAbbreviationCd>MA</StateAbbreviationCd>
        <ZIPCd>02138</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>GEORGE SACERDOTE</PersonNm>
      <PersonTitleTxt>TREASURER</PersonTitleTxt>
      <PhoneNum>6173549427</PhoneNum>
      <SignatureDt>2025-03-24</SignatureDt>
      <DiscussWithPaidPreparerInd>1</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>0</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>JOSEPH GISO</PreparerPersonNm>
      <PTIN>P00030126</PTIN>
      <PhoneNum>7819143400</PhoneNum>
      <PreparationDt>2025-03-24</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2023</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="3">
    <IRS990 documentId="RetDoc1038000001" referenceDocumentId="RetDoc1044400001">
      <PrincipalOfficerNm>GEORGE SACERDOTE</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>40 WILLARD STREET</AddressLine1Txt>
        <CityNm>CAMBRIDGE</CityNm>
        <StateAbbreviationCd>MA</StateAbbreviationCd>
        <ZIPCd>02138</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>858954</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>0</GroupReturnForAffiliatesInd>
      <Organization501cInd organization501cTypeTxt="7">X</Organization501cInd>
      <WebsiteAddressTxt>CAMBRIDGESKATINGCLUB.ORG</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>1908</FormationYr>
      <LegalDomicileStateCd>MA</LegalDomicileStateCd>
      <ActivityOrMissionDesc>CAMBRIDGE SKATING CLUB IS A PRIVATE CLUB CONSTITUTED FOR THE PURPOSE OF ENCOURAGING ATHLETIC EXERCISES.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>9</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>9</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>2</TotalEmployeeCnt>
      <TotalVolunteersCnt>60</TotalVolunteersCnt>
      <TotalGrossUBIAmt>237695</TotalGrossUBIAmt>
      <NetUnrelatedBusTxblIncmAmt>55676</NetUnrelatedBusTxblIncmAmt>
      <PYContributionsGrantsAmt>0</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>0</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>392829</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>406839</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>16774</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>15597</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>0</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>0</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>409603</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>422436</CYTotalRevenueAmt>
      <PYGrantsAndSimilarPaidAmt>0</PYGrantsAndSimilarPaidAmt>
      <CYGrantsAndSimilarPaidAmt>1080</CYGrantsAndSimilarPaidAmt>
      <PYBenefitsPaidToMembersAmt>0</PYBenefitsPaidToMembersAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>71215</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>81523</CYSalariesCompEmpBnftPaidAmt>
      <PYTotalProfFndrsngExpnsAmt>0</PYTotalProfFndrsngExpnsAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>0</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>280132</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>316447</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>351347</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>399050</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>58256</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>23386</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>1190159</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>1389465</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>362</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>1595</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>1189797</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>1387870</NetAssetsOrFundBalancesEOYAmt>
      <MissionDesc>CAMBRIDGE SKATING CLUB IS A PRIVATE CLUB CONSTITUTED FOR THE PURPOSE OF ENCOURAGING ATHLETIC EXERCISES.</MissionDesc>
      <SignificantNewProgramSrvcInd>0</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>0</SignificantChangeInd>
      <RevenueAmt>184741</RevenueAmt>
      <Desc>THE ORGANIZATION PROVIDES ICE SKATING FACILITIES AND RELATED SERVICES AND SOCIAL ACTIVITIES TO IT'S MEMBERS AND, TO A LIMITED DEGREE, MEMBER GUESTS.</Desc>
      <ProgSrvcAccomActy2Grp>
        <Desc>THE ORGANIZATION PROVIDES TENNIS FACILITIES AND RELATED SERVICES TO THE CAMBRIDGE TENNIS CLUB.</Desc>
      </ProgSrvcAccomActy2Grp>
      <DescribedInSection501c3Ind>0</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd>0</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>0</PoliticalCampaignActyInd>
      <SubjectToProxyTaxInd>0</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd referenceDocumentId="RetDoc1040000001">0</DonorAdvisedFundInd>
      <ConservationEasementsInd referenceDocumentId="RetDoc1040000001">0</ConservationEasementsInd>
      <CollectionsOfArtInd referenceDocumentId="RetDoc1040000001">0</CollectionsOfArtInd>
      <CreditCounselingInd referenceDocumentId="RetDoc1040000001">0</CreditCounselingInd>
      <DonorRstrOrQuasiEndowmentsInd>0</DonorRstrOrQuasiEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="RetDoc1040000001">1</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd referenceDocumentId="RetDoc1040000001">1</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd referenceDocumentId="RetDoc1040000001">0</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="RetDoc1040000001">0</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="RetDoc1040000001">1</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd referenceDocumentId="RetDoc1040000001">0</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd referenceDocumentId="RetDoc1040000001">0</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd referenceDocumentId="RetDoc1040000001">0</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>0</SchoolOperatingInd>
      <ForeignOfficeInd>0</ForeignOfficeInd>
      <ForeignActivitiesInd>0</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd>0</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd>0</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd>0</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd>0</FundraisingActivitiesInd>
      <GamingActivitiesInd>0</GamingActivitiesInd>
      <OperateHospitalInd>0</OperateHospitalInd>
      <GrantsToOrganizationsInd>0</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd>0</GrantsToIndividualsInd>
      <ScheduleJRequiredInd>0</ScheduleJRequiredInd>
      <TaxExemptBondsInd>0</TaxExemptBondsInd>
      <LoanOutstandingInd>0</LoanOutstandingInd>
      <GrantToRelatedPersonInd>0</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>0</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>0</BusinessRlnWithFamMemInd>
      <BusinessRlnWith35CtrlEntInd>0</BusinessRlnWith35CtrlEntInd>
      <DeductibleNonCashContriInd>0</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd>0</DeductibleArtContributionInd>
      <TerminateOperationsInd>0</TerminateOperationsInd>
      <PartialLiquidationInd>0</PartialLiquidationInd>
      <DisregardedEntityInd>0</DisregardedEntityInd>
      <RelatedEntityInd>0</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
      <ActivitiesConductedPrtshpInd>0</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>1</ScheduleORequiredInd>
      <IRPDocumentCnt>8</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <BackupWthldComplianceInd>1</BackupWthldComplianceInd>
      <EmployeeCnt>2</EmployeeCnt>
      <EmploymentTaxReturnsFiledInd>1</EmploymentTaxReturnsFiledInd>
      <UnrelatedBusIncmOverLimitInd>1</UnrelatedBusIncmOverLimitInd>
      <Form990TFiledInd>1</Form990TFiledInd>
      <ForeignFinancialAccountInd>0</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>0</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>0</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>0</NondeductibleContributionsInd>
      <InitiationFeesAndCapContriAmt>0</InitiationFeesAndCapContriAmt>
      <GrossReceiptsForPublicUseAmt>0</GrossReceiptsForPublicUseAmt>
      <IndoorTanningServicesInd>0</IndoorTanningServicesInd>
      <SubjToTaxRmnrtnExPrchtPymtInd>0</SubjToTaxRmnrtnExPrchtPymtInd>
      <SubjectToExcsTaxNetInvstIncInd>0</SubjectToExcsTaxNetInvstIncInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>9</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>9</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>0</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>0</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>0</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>0</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>0</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>0</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>0</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>1</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>1</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>0</OfficerMailingAddressInd>
      <LocalChaptersInd>0</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>1</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>1</ConflictOfInterestPolicyInd>
      <AnnualDisclosureCoveredPrsnInd>1</AnnualDisclosureCoveredPrsnInd>
      <RegularMonitoringEnfrcInd>1</RegularMonitoringEnfrcInd>
      <WhistleblowerPolicyInd>1</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>1</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>0</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>1</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>0</InvestmentInJointVentureInd>
      <UponRequestInd>X</UponRequestInd>
      <OtherInd>X</OtherInd>
      <BooksInCareOfDetail>
        <BusinessName>
          <BusinessNameLine1Txt>GEORGE SACERDOTE</BusinessNameLine1Txt>
        </BusinessName>
        <PhoneNum>6173549427</PhoneNum>
        <USAddress>
          <AddressLine1Txt>40 WILLARD STREET</AddressLine1Txt>
          <CityNm>CAMBRIDGE</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02138</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <NoListedPersonsCompensatedInd>X</NoListedPersonsCompensatedInd>
      <Form990PartVIISectionAGrp>
        <PersonNm>ANDUS BAKER</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>4.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>GEORGE SACERDOTE</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>NUNZI SAPUPPO</PersonNm>
        <TitleTxt>ASST TREASURER</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CAROLYN O'BRIEN</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JOHN GREENUP</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ANGELA GRELAND</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JAMES MOORE</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CHARLES NORRIS</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>LINDSEY YAMAGUCHI</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>0</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>0</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>0</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>0</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <CntrctRcvdGreaterThan100KCnt>0</CntrctRcvdGreaterThan100KCnt>
      <ProgramServiceRevenueGrp>
        <Desc>TENNIS PROGRAM</Desc>
        <BusinessCd>713940</BusinessCd>
        <TotalRevenueColumnAmt>222098</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>222098</UnrelatedBusinessRevenueAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>SKATING MEMBERSHIPS</Desc>
        <BusinessCd>713940</BusinessCd>
        <TotalRevenueColumnAmt>170885</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>170885</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>SKATING PROGRAM</Desc>
        <BusinessCd>713940</BusinessCd>
        <TotalRevenueColumnAmt>7348</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>7348</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>CLUBHOUSE RENTAL</Desc>
        <BusinessCd>713940</BusinessCd>
        <TotalRevenueColumnAmt>3920</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>3920</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>GUEST FEES</Desc>
        <BusinessCd>713940</BusinessCd>
        <TotalRevenueColumnAmt>1477</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>1477</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalOthProgramServiceRevGrp>
        <TotalRevenueColumnAmt>1111</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>1111</RelatedOrExemptFuncIncomeAmt>
      </TotalOthProgramServiceRevGrp>
      <TotalProgramServiceRevenueAmt>406839</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>23592</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>23592</UnrelatedBusinessRevenueAmt>
      </InvestmentIncomeGrp>
      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>428523</SecuritiesAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>436518</SecuritiesAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>-7995</SecuritiesAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>-7995</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>-7995</UnrelatedBusinessRevenueAmt>
      </NetGainOrLossInvestmentsGrp>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>422436</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>184741</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>237695</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
      </TotalRevenueGrp>
      <InfoInScheduleOPartIXInd>X</InfoInScheduleOPartIXInd>
      <GrantsToDomesticIndividualsGrp>
        <TotalAmt>1080</TotalAmt>
      </GrantsToDomesticIndividualsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>75500</TotalAmt>
      </OtherSalariesAndWagesGrp>
      <PayrollTaxesGrp>
        <TotalAmt>6023</TotalAmt>
      </PayrollTaxesGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>7999</TotalAmt>
      </FeesForServicesAccountingGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>7813</TotalAmt>
      </FeesForServicesOtherGrp>
      <AdvertisingGrp>
        <TotalAmt>12197</TotalAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>2818</TotalAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>6415</TotalAmt>
      </InformationTechnologyGrp>
      <OccupancyGrp>
        <TotalAmt>27000</TotalAmt>
      </OccupancyGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>7010</TotalAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>19160</TotalAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>UBIT TAX</Desc>
        <TotalAmt>32458</TotalAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>CLUBHOUSE SERVICES</Desc>
        <TotalAmt>70082</TotalAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>MISCELLANEOUS TAX</Desc>
        <TotalAmt>41708</TotalAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>ICE RINK RENTAL</Desc>
        <TotalAmt>38730</TotalAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>43057</TotalAmt>
      </AllOtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>399050</TotalAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>223</BOYAmt>
        <EOYAmt>224</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>32046</BOYAmt>
        <EOYAmt>120822</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <LandBldgEquipCostOrOtherBssAmt>178793</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>45360</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>98657</BOYAmt>
        <EOYAmt>133433</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>6539</BOYAmt>
        <EOYAmt>6957</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <InvestmentsOtherSecuritiesGrp>
        <BOYAmt>1052694</BOYAmt>
        <EOYAmt>1128029</EOYAmt>
      </InvestmentsOtherSecuritiesGrp>
      <TotalAssetsGrp>
        <BOYAmt>1190159</BOYAmt>
        <EOYAmt>1389465</EOYAmt>
      </TotalAssetsGrp>
      <OtherLiabilitiesGrp>
        <BOYAmt>362</BOYAmt>
        <EOYAmt>1595</EOYAmt>
      </OtherLiabilitiesGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>362</BOYAmt>
        <EOYAmt>1595</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>1189797</BOYAmt>
        <EOYAmt>1387870</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>1189797</BOYAmt>
        <EOYAmt>1387870</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>1190159</BOYAmt>
        <EOYAmt>1389465</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>23386</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>174687</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>0</FSAuditedInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <LandGrp>
        <OtherCostOrOtherBasisAmt>25000</OtherCostOrOtherBasisAmt>
        <BookValueAmt>25000</BookValueAmt>
      </LandGrp>
      <BuildingsGrp>
        <OtherCostOrOtherBasisAmt>148187</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>39754</DepreciationAmt>
        <BookValueAmt>108433</BookValueAmt>
      </BuildingsGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>5606</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>5606</DepreciationAmt>
        <BookValueAmt>0</BookValueAmt>
      </EquipmentGrp>
      <TotalBookValueLandBuildingsAmt>133433</TotalBookValueLandBuildingsAmt>
      <OtherSecuritiesGrp>
        <Desc>6,496.848 SHARES ISHARES CORE S&amp;P TOTAL US STOCK MARKET ETF</Desc>
        <BookValueAmt>802880</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
        <Desc>0.456 SHARES ISHARES CORE US AGGREGATE BOND ETF</Desc>
        <BookValueAmt>46</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
        <Desc>3,926.367 SHARES ISHARES TRUST 1-3 YEAR TREASURY BOND ETF</Desc>
        <BookValueAmt>325103</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <TotalBookValueSecuritiesAmt>1128029</TotalBookValueSecuritiesAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>MISC CREDIT CHARGES</Desc>
        <Amt>1595</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>1595</TotalLiabilityAmt>
    </IRS990ScheduleD>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION DISTRIBUTES A COPY OF FORM 990 TO BOARD MEMBERS PRIOR TO FILING THE RETURN.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>ALL MEMBERS OF THE BOARD OF DIRECTORS ARE REQUIRED TO DISCLOSE ANY CONFLICTS OF INTEREST BY COMPLETING A QUESTIONNAIRE ANNUALLY. IF A CONFLICT OF INTEREST IS DEEMED TO EXIST, IT IS THE DUTY OF THE INDIVIDUAL TO DISCLOSE SUCH INTEREST. THIS INTEREST IS TO BE RECORDED IN THE MINUTES OF THE BOARD MEETING AND WHERE THE CONFLICT CONCERNS ANY BOARD MEMBER, THE INDIVIDUAL(S) SHALL NOT PARTICIPATE IN ANY VOTE OR DELIBERATION ON THE MATTER.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CAMBRIDGE SKATING CLUB (CSC) PRESIDENT ASSESSES 12-MONTH PERFORMANCE OF THE CSC GENERAL MANAGER AND MAKES COMPENSATION ADJUSTMENTS BASED ON COST OF LIVING INCREASES AND/OR PAST-YEAR'S PERFORMANCE AND ASSIGNED DUTIES FOR THE COMING YEAR.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 18</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION MAKES ITS FORM 990 AND 990T AVAILABLE FOR PUBLIC INSPECTION AS REQUIRED UNDER SECTION 6104 OF THE INTERNAL REVENUE CODE UPON REQUEST AND ON GUIDESTAR.ORG AND OTHER SIMILAR TYPES OF WEBSITES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION DOES NOT MAKE ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 24E</FormAndLineReferenceDesc>
        <ExplanationTxt>FACILITIES MAINTENANCE 34,150. PROFESSIONAL DEVELOPMENT 3,485. REFRIG ICE PROJECT 2,892. STAFF GIFTS 1,300. SKATING PROGRAMS 590. DUES AND SUBSCRIPTIONS 545. BANK FEES 95.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>