﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2024v5.0">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2025-04-04T21:25:21-04:00</ReturnTs>
    <TaxPeriodEndDt>2024-12-31</TaxPeriodEndDt>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2024-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>460706380</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>GONZAGA PREP BASEBALL BOOSTER CLUB</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>GONZ</BusinessNameControlTxt>
      <PhoneNum>5097472002</PhoneNum>
      <USAddress>
        <AddressLine1Txt>1129 E ROCKWOOD BLVD</AddressLine1Txt>
        <CityNm>SPOKANE</CityNm>
        <StateAbbreviationCd>WA</StateAbbreviationCd>
        <ZIPCd>99203</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>BRIAN G GOSLINE</PersonNm>
      <PersonTitleTxt>SECRETARY</PersonTitleTxt>
      <PhoneNum>5097472002</PhoneNum>
      <SignatureDt>2025-04-01</SignatureDt>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>false</IRSResponsiblePrtyInfoCurrInd>
    <TaxYr>2024</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="3">
    <IRS990EZ documentId="RetDoc1" referenceDocumentId="RetDoc2">
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>N/A</WebsiteAddressTxt>
      <Organization501c3Ind referenceDocumentId="RetDoc3">X</Organization501c3Ind>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>86291</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>12250</ContributionsGiftsGrantsEtcAmt>
      <ProgramServiceRevenueAmt>74041</ProgramServiceRevenueAmt>
      <TotalRevenueAmt>86291</TotalRevenueAmt>
      <FeesAndOtherPymtToIndCntrctAmt>21500</FeesAndOtherPymtToIndCntrctAmt>
      <OtherExpensesTotalAmt>65840</OtherExpensesTotalAmt>
      <TotalExpensesAmt>87340</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>-1049</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>21428</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>20379</NetAssetsOrFundBalancesEOYAmt>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>21428</BOYAmt>
        <EOYAmt>20379</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <Form990TotalAssetsGrp>
        <BOYAmt>21428</BOYAmt>
        <EOYAmt>20379</EOYAmt>
      </Form990TotalAssetsGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>21428</BOYAmt>
        <EOYAmt>20379</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <PrimaryExemptPurposeTxt>THE ORGANIZATION'S PRIMARY PURPOSE IS TO SUPPORT AN AMATEUR ATHLETIC PROGRAM CONDUCTED THROUGH AND ON BEHALF OF GONZAGA PREPARATORY SCHOOL, A WASHINGTON NONPROFIT CORPORATION AND A FULLY DOCUMENTED IRC SECTION 501(C) (3) ORGANIZATION IN ACCORDANCE WITH FEDERAL LAW. THE ORGANIZATION CONSISTS OF A COMMITTED AND DEDICATED GROUP THAT UPHOLDS THE PRINCIPLES, TRADITIONS, AND EXCELLENCE OF ALL LEVELS OF GONZAGA PREPARATORY SCHOOL BASEBALL THROUGH THE COOPERATIVE EFFORTS AND VOLUNTARY SUPPORT OF PARENTS, PLAYERS AND COACHES.</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>ADDITIONAL CHARITABLE CONTRIBUTIONS WERE SOUGHT AND RECEIVED.</DescriptionProgramSrvcAccomTxt>
      </ProgramSrvcAccomplishmentGrp>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>THE ORGANIZATION'S ACTIVITIES FURTHER THE ORGANIZATION'S EXEMPT PURPOSES BY PROMOTING A COMPETITIVE AND MEMORABLE BASEBALL EXPERIENCE FOR YOUNG MEN BY QUALITY COACHING, SCHEDULING, FACILITIES AND EXPECTATIONS AT AFFORDABLE COSTS FOR ALL FAMILIES.</DescriptionProgramSrvcAccomTxt>
        <ProgramServiceExpensesAmt>86854</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>86854</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>JEFF YOUNG</PersonNm>
        <TitleTxt>VICE PRESIDE</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>000.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>BRIAN G GOSLINE</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>000.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>DOUGLAS S MUNHALL</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>000.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>BRIAN A MUNHALL</PersonNm>
        <TitleTxt>HEAD VARSITY</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>000.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>FORREST HIGGINS</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>000.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>false</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>false</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd>false</OrganizationDissolvedEtcInd>
      <Form1120PolFiledInd>false</Form1120PolFiledInd>
      <MadeLoansToFromOfficersInd>false</MadeLoansToFromOfficersInd>
      <EngagedInExcessBenefitTransInd>false</EngagedInExcessBenefitTransInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <BooksInCareOfDetail>
        <PersonNm>DOUGLAS S MUNHALL</PersonNm>
        <USAddress>
          <AddressLine1Txt>5814 S REBECCA STREET</AddressLine1Txt>
          <CityNm>SPOKANE</CityNm>
          <StateAbbreviationCd>WA</StateAbbreviationCd>
          <ZIPCd>99223</ZIPCd>
        </USAddress>
        <PhoneNum>5097472002</PhoneNum>
      </BooksInCareOfDetail>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <DonorAdvisedFndsInd>false</DonorAdvisedFndsInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <TanningServicesProvidedInd>false</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TransactionWithControlEntInd>false</TransactionWithControlEntInd>
      <PoliticalCampaignActyInd>false</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>false</LobbyingActivitiesInd>
      <SchoolOperatingInd>false</SchoolOperatingInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>false</TrnsfrExmptNonChrtblRltdOrgInd>
      <PartVIOfCompOfHghstPdEmplTxt>NONE</PartVIOfCompOfHghstPdEmplTxt>
      <PartVIHghstPdCntrctProfSrvcTxt>NONE</PartVIHghstPdCntrctProfSrvcTxt>
      <FiledScheduleAInd>true</FiledScheduleAInd>
    </IRS990EZ>
    <IRS990ScheduleA documentId="RetDoc3">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>3695</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>16500</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>20600</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>7094</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>12250</CurrentTaxYearAmt>
        <TotalAmt>60139</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>3695</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>16500</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>20600</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>7094</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>12250</CurrentTaxYearAmt>
        <TotalAmt>60139</TotalAmt>
      </TotalCalendarYear170Grp>
      <PublicSupportTotal170Amt>60139</PublicSupportTotal170Amt>
      <TotalSupportAmt>60139</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>320853</GrossReceiptsRltdActivitiesAmt>
      <PublicSupportCY170Pct>1.00000</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>1.00000</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleO documentId="RetDoc2">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 16</FormAndLineReferenceDesc>
        <ExplanationTxt>EXPENSES REPAIRS/FIELD MAINTENANCE 5,015 TOURNAMENT FEES/EXPENSES 10,576 BASEBALL EQUIP/UNIFORMS 14,589 CONCESSION EXPENSES 1,739 TROPHIES &amp; AWARDS 105 MISCELLANEOUS 7,097 SUMMER CAMP 3,348 FUNDRAISING EXPENSES 486 FACILITY RENTAL 5,543 LEGION PLAYER FEES 12,555 GSL PROGRAM 980 TRAVEL EXPENSES 119 PRIOR YEAR EXPENSES PAID 3,688 TOTAL 65,840</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART III</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION'S PRIMARY PURPOSE IS TO SUPPORT AN AMATEUR ATHLETIC PROGRAM CONDUCTED THROUGH AND ON BEHALF OF GONZAGA PREPARATORY SCHOOL, A WASHINGTON NONPROFIT CORPORATION AND A FULLY DOCUMENTED IRC SECTION 501(C) (3) ORGANIZATION IN ACCORDANCE WITH FEDERAL LAW. THE ORGANIZATION CONSISTS OF A COMMITTED AND DEDICATED GROUP THAT UPHOLDS THE PRINCIPLES, TRADITIONS, AND EXCELLENCE OF ALL LEVELS OF GONZAGA PREPARATORY SCHOOL BASEBALL THROUGH THE COOPERATIVE EFFORTS AND VOLUNTARY SUPPORT OF PARENTS, PLAYERS AND COACHES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART III, LINE 31</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION'S ACTIVITIES FURTHER THE ORGANIZATION'S EXEMPT PURPOSES BY PROMOTING A COMPETITIVE AND MEMORABLE BASEBALL EXPERIENCE FOR YOUNG MEN BY QUALITY COACHING, SCHEDULING, FACILITIES AND EXPECTATIONS AT AFFORDABLE COSTS FOR ALL FAMILIES.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>