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    <submissionType>13F-HR</submissionType>
    <filerInfo>
      <liveTestFlag>LIVE</liveTestFlag>
      <flags>
        <confirmingCopyFlag>false</confirmingCopyFlag>
        <returnCopyFlag>false</returnCopyFlag>
        <overrideInternetFlag>false</overrideInternetFlag>
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      <filer>
        <credentials>
          <cik>0001714267</cik>
          <ccc>XXXXXXXX</ccc>
        </credentials>
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      <periodOfReport>09-30-2024</periodOfReport>
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    <coverPage>
      <reportCalendarOrQuarter>09-30-2024</reportCalendarOrQuarter>
      <filingManager>
        <name>THAMES CAPITAL MANAGEMENT LLC</name>
        <address>
          <n1:street1>103 Eisenhower Parkway</n1:street1>
          <n1:street2>3rd Floor</n1:street2>
          <n1:city>Roseland</n1:city>
          <n1:stateOrCountry>NJ</n1:stateOrCountry>
          <n1:zipCode>07068</n1:zipCode>
        </address>
      </filingManager>
      <reportType>13F HOLDINGS REPORT</reportType>
      <form13FFileNumber>028-18486</form13FFileNumber>
      <crdNumber>000288755</crdNumber>
      <secFileNumber>801-113654</secFileNumber>
      <provideInfoForInstruction5>N</provideInfoForInstruction5>
    </coverPage>
    <signatureBlock>
      <name>Steven DiMartino</name>
      <title>Chief Financial Officer</title>
      <phone>973-200-6725</phone>
      <signature>Steven DiMartino</signature>
      <city>Roseland</city>
      <stateOrCountry>NJ</stateOrCountry>
      <signatureDate>11-5-2024</signatureDate>
    </signatureBlock>
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      <tableEntryTotal>38</tableEntryTotal>
      <tableValueTotal>320995340</tableValueTotal>
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