﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2018v3.1">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2019-02-26T17:20:49-06:00</ReturnTs>
    <TaxPeriodEndDt>2018-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>261782800</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>JOHNSON MOWDY ASSOCIATES CPA'S PC</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>199 MAIN ROAD PO BOX 1060</AddressLine1Txt>
        <CityNm>AQUEBOGUE</CityNm>
        <StateAbbreviationCd>NY</StateAbbreviationCd>
        <ZIPCd>11931</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2018-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>112808122</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>SHELTER ISLAND RUN INC</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>SHEL</BusinessNameControlTxt>
      <PhoneNum>6317490479</PhoneNum>
      <USAddress>
        <AddressLine1Txt>PO BOX 266</AddressLine1Txt>
        <CityNm>SHELTER ISLAND</CityNm>
        <StateAbbreviationCd>NY</StateAbbreviationCd>
        <ZIPCd>11964</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>HILARY MCDONALD</PersonNm>
      <PersonTitleTxt>TREASURER</PersonTitleTxt>
      <PhoneNum>6317490479</PhoneNum>
      <SignatureDt>2019-02-12</SignatureDt>
    </BusinessOfficerGrp>
    <PreparerPersonGrp>
      <PreparerPersonNm>JAMES P MOWDY CPA</PreparerPersonNm>
      <PTIN>P01206012</PTIN>
      <PhoneNum>6317282500</PhoneNum>
      <PreparationDt>2019-02-13</PreparationDt>
    </PreparerPersonGrp>
    <FilingSecurityInformation>
      <IPAddress>
        <IPv4AddressTxt>75.99.22.246</IPv4AddressTxt>
      </IPAddress>
      <IPDt>2019-02-26</IPDt>
      <IPTm>17:20:49</IPTm>
      <IPTimezoneCd>CS</IPTimezoneCd>
      <FilingLicenseTypeCd>P</FilingLicenseTypeCd>
      <AtSubmissionCreationDeviceId>677AEC32AF5380A8573A151A4F34B65B900674F2</AtSubmissionCreationDeviceId>
      <AtSubmissionFilingDeviceId>677AEC32AF5380A8573A151A4F34B65B900674F2</AtSubmissionFilingDeviceId>
    </FilingSecurityInformation>
    <TaxYr>2018</TaxYr>
    <BuildTS>2019-02-21 02:37:17Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="4">
    <IRS990EZ documentId="RetDoc2" referenceDocumentId="RetDoc3">
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <WebsiteAddressTxt>N/A</WebsiteAddressTxt>
      <Organization501c3Ind referenceDocumentId="RetDoc4">X</Organization501c3Ind>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>109958</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>40750</ContributionsGiftsGrantsEtcAmt>
      <ProgramServiceRevenueAmt>68125</ProgramServiceRevenueAmt>
      <GrossSalesOfInventoryAmt>1083</GrossSalesOfInventoryAmt>
      <GrossProfitLossSlsOfInvntryAmt>1083</GrossProfitLossSlsOfInvntryAmt>
      <TotalRevenueAmt>109958</TotalRevenueAmt>
      <FeesAndOtherPymtToIndCntrctAmt>8910</FeesAndOtherPymtToIndCntrctAmt>
      <OccupancyRentUtltsAndMaintAmt>1491</OccupancyRentUtltsAndMaintAmt>
      <PrintingPublicationsPostageAmt>818</PrintingPublicationsPostageAmt>
      <OtherExpensesTotalAmt>94818</OtherExpensesTotalAmt>
      <TotalExpensesAmt>106037</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>3921</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>64</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>3985</NetAssetsOrFundBalancesEOYAmt>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>64</BOYAmt>
        <EOYAmt>3985</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <Form990TotalAssetsGrp>
        <BOYAmt>64</BOYAmt>
        <EOYAmt>3985</EOYAmt>
      </Form990TotalAssetsGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>64</BOYAmt>
        <EOYAmt>3985</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <PrimaryExemptPurposeTxt>ANNUAL FOOT RACE FOR THE SOLE PURPOSE OF RAISING FUNDS TO DONATE TO CHARITABLE ORGANIZATIONS</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>ANNUAL FOOT RACE FOR THE SOLE PURPOSE OF RAISING FUNDS TO DONATE TO CHARITABLE ORGANIZATIONS</DescriptionProgramSrvcAccomTxt>
        <ProgramServiceExpensesAmt>103728</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>SALE OF RELATED APPAREL DURING CHARITABLE EVENT</DescriptionProgramSrvcAccomTxt>
        <ProgramServiceExpensesAmt>2309</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>106037</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>MARY ELLEN ADIPIETRO</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>JAMES EKLUND</PersonNm>
        <TitleTxt>VICE PRESIDE</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>CLIFF CLARK</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>HILARY MCDONALD</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</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>HILARY MCDONALD</PersonNm>
        <USAddress>
          <AddressLine1Txt>POX BOX 635</AddressLine1Txt>
          <CityNm>SHELTER ISLAND</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>11964</ZIPCd>
        </USAddress>
        <PhoneNum>6317490479</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="RetDoc4">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus4YearsAmt>28250</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>68450</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>57550</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>47600</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>40750</CurrentTaxYearAmt>
        <TotalAmt>242600</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <GrossReceiptsAdmissionsGrp>
        <CurrentTaxYearMinus4YearsAmt>69701</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>76831</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>98078</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>91308</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>69208</CurrentTaxYearAmt>
        <TotalAmt>405126</TotalAmt>
      </GrossReceiptsAdmissionsGrp>
      <Total509Grp>
        <CurrentTaxYearMinus4YearsAmt>97951</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>145281</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>155628</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>138908</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>109958</CurrentTaxYearAmt>
        <TotalAmt>647726</TotalAmt>
      </Total509Grp>
      <AmountsRcvdDsqlfyPersonGrp>
        <CurrentTaxYearMinus4YearsAmt>12000</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>36700</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>33350</CurrentTaxYearMinus2YearsAmt>
        <TotalAmt>82050</TotalAmt>
      </AmountsRcvdDsqlfyPersonGrp>
      <SubstantialContributorsAmtGrp>
        <CurrentTaxYearMinus4YearsAmt>2500</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>13000</CurrentTaxYearMinus2YearsAmt>
        <TotalAmt>15500</TotalAmt>
      </SubstantialContributorsAmtGrp>
      <SubstAndDsqlfyPrsnsTotGrp>
        <CurrentTaxYearMinus4YearsAmt>14500</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>36700</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>46350</CurrentTaxYearMinus2YearsAmt>
        <TotalAmt>97550</TotalAmt>
      </SubstAndDsqlfyPrsnsTotGrp>
      <PublicSupportTotal509Amt>550176</PublicSupportTotal509Amt>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>97951</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>145281</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>155628</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>138908</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>109958</CurrentTaxYearAmt>
        <TotalAmt>647726</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>0.84940</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.82890</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.00000</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.00000</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1" />
    <IRS990ScheduleO documentId="RetDoc3">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 16</FormAndLineReferenceDesc>
        <ExplanationTxt>EXPENSES ADVERTISING 7,096 COMPUTER AND INTERNET 762 OFFICE 239 TRANSPORTATION 388 LODGING 722 BANK CHARGES 1,505 CONTRIBUTIONS 7,150 EQUIPMENT RENTAL 1,500 GUEST SPEAKERS 13,500 GRAPHIC DESIGN 9,230 MEALS AND ENTERTAINMENT 3,414 PRE AND POST PARTIES 4,978 PUBLIC RELATIONS 4,200 REPAIRS 2,344 RUNNERS SUPPLIES 20,735 SUPPLIES 5,961 TAXES 50 TENT RENTAL 2,184 PHOTOGRAPHY 2,386 MISCELLANEOUS 55 SANITATION 1,500 DUES 283 PERMITS 36 PRIZED AND AWARDS 4,600 TOTAL 94,818</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART III</FormAndLineReferenceDesc>
        <ExplanationTxt>ANNUAL FOOT RACE FOR THE SOLE PURPOSE OF RAISING FUNDS TO DONATE TO CHARITABLE ORGANIZATIONS</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART III, LINE 31</FormAndLineReferenceDesc>
        <ExplanationTxt>SALE OF RELATED APPAREL DURING CHARITABLE EVENT</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>