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    <ReturnTs>2025-01-14T08:10:18-07:00</ReturnTs>
    <TaxPeriodEndDt>2024-09-30</TaxPeriodEndDt>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-10-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>237010502</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>OPTIMIST INTERNATIONAL</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>OPTI</BusinessNameControlTxt>
      <PhoneNum>6143537975</PhoneNum>
      <USAddress>
        <AddressLine1Txt>2532 Zollinger Road</AddressLine1Txt>
        <CityNm>Columbus</CityNm>
        <StateAbbreviationCd>OH</StateAbbreviationCd>
        <ZIPCd>43221</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>Robert Eggleton</PersonNm>
      <PersonTitleTxt>Treasurer</PersonTitleTxt>
      <PhoneNum>6143537975</PhoneNum>
      <SignatureDt>2025-01-14</SignatureDt>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>1</IRSResponsiblePrtyInfoCurrInd>
    <TaxYr>2023</TaxYr>
    <BuildTS>2024-10-15 13:58:12Z</BuildTS>
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      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>uaoptimist.com</WebsiteAddressTxt>
      <Organization501cInd organization501cTypeTxt="4">X</Organization501cInd>
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      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>50</ContributionsGiftsGrantsEtcAmt>
      <ProgramServiceRevenueAmt>99611</ProgramServiceRevenueAmt>
      <MembershipDuesAmt>350</MembershipDuesAmt>
      <InvestmentIncomeAmt>7</InvestmentIncomeAmt>
      <SaleOfAssetsGrossAmt>0</SaleOfAssetsGrossAmt>
      <CostOrOtherBasisExpenseSaleAmt>0</CostOrOtherBasisExpenseSaleAmt>
      <GainOrLossFromSaleOfAssetsAmt>0</GainOrLossFromSaleOfAssetsAmt>
      <GamingGrossIncomeAmt>0</GamingGrossIncomeAmt>
      <FundraisingGrossIncomeAmt fndrsngEventContriPrevRptAmt="0">0</FundraisingGrossIncomeAmt>
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      <SpecialEventsNetIncomeLossAmt>0</SpecialEventsNetIncomeLossAmt>
      <GrossSalesOfInventoryAmt>0</GrossSalesOfInventoryAmt>
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      <OtherRevenueTotalAmt>0</OtherRevenueTotalAmt>
      <TotalRevenueAmt>100018</TotalRevenueAmt>
      <GrantsAndSimilarAmountsPaidAmt>11450</GrantsAndSimilarAmountsPaidAmt>
      <BenefitsPaidToOrForMembersAmt>0</BenefitsPaidToOrForMembersAmt>
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      <FeesAndOtherPymtToIndCntrctAmt>0</FeesAndOtherPymtToIndCntrctAmt>
      <OccupancyRentUtltsAndMaintAmt>34068</OccupancyRentUtltsAndMaintAmt>
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      <TotalExpensesAmt>106442</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>-6424</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>33428</NetAssetsOrFundBalancesBOYAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <NetAssetsOrFundBalancesEOYAmt>27004</NetAssetsOrFundBalancesEOYAmt>
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        <BOYAmt>33428</BOYAmt>
        <EOYAmt>27004</EOYAmt>
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      <LandAndBuildingsGrp>
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        <EOYAmt>0</EOYAmt>
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        <EOYAmt>0</EOYAmt>
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      <Form990TotalAssetsGrp>
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        <EOYAmt>27004</EOYAmt>
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      <PrimaryExemptPurposeTxt>Youth Development through youth basketball, essay, and oratorical contests.</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>Provide Youth Basketball Programming to more than 1000 K-12 children in Upper Arlington and Grandview, Ohio.</DescriptionProgramSrvcAccomTxt>
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        <ProgramServiceExpensesAmt>90179</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>Administer youth essay, oratorical, and sportsmanship contests and scholarships for over 100 middle and high school students in Upper Arlington, Ohio</DescriptionProgramSrvcAccomTxt>
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        <ProgramServiceExpensesAmt>500</ProgramServiceExpensesAmt>
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      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>Overhead and Administration and grants to other non-profit organizations</DescriptionProgramSrvcAccomTxt>
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        <ProgramServiceExpensesAmt>2759</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>93438</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Paul Boyer</PersonNm>
        <TitleTxt>President</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Robert Eggleton</PersonNm>
        <TitleTxt>Treasurer</TitleTxt>
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      <ActivitiesNotPreviouslyRptInd>0</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>0</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>0</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd>0</SubjectToProxyTaxInd>
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      <DirectIndirectPltclExpendAmt>0</DirectIndirectPltclExpendAmt>
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      <MadeLoansToFromOfficersInd>0</MadeLoansToFromOfficersInd>
      <EngagedInExcessBenefitTransInd>0</EngagedInExcessBenefitTransInd>
      <TaxImposedOnOrganizationMgrAmt>0</TaxImposedOnOrganizationMgrAmt>
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      <StatesWhereCopyOfReturnIsFldCd>OH</StatesWhereCopyOfReturnIsFldCd>
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        <PersonNm>Robert Eggleton</PersonNm>
        <USAddress>
          <AddressLine1Txt>2532 Zollinger Road</AddressLine1Txt>
          <CityNm>Columbus</CityNm>
          <StateAbbreviationCd>OH</StateAbbreviationCd>
          <ZIPCd>43221</ZIPCd>
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        <PhoneNum>6143537975</PhoneNum>
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      <ForeignOfficeInd>0</ForeignOfficeInd>
      <DonorAdvisedFndsInd>0</DonorAdvisedFndsInd>
      <OperateHospitalInd>0</OperateHospitalInd>
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      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990-EZ, Part I, Line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>Basketball League Expenses (except facilities) - $56,611. Awards Banquet - $1553.94. Optimist Dues - $1158.76. Advertising - $300.00. Office Expenses - $1300.60</ExplanationTxt>
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