MO' Cowbell Marathon/Half-Marathon/Half-Marathon Relay/5K

Saturday, October 2 - Sunday, October 3, 2021 Saint Charles, MO 63301 US Directions
2020 Deferral Info

You can complete your deferral and register for ANY event in the 2021 MO' Cowbell.  

  • You can register for the same event or a 2021 event with a lower entry fee at no cost. Refunds are not available when transferring to an event with a lower entry fee  
  • You also have the option of upgrading to a 2021 event with a higher entry fee and pay the difference between the 2021 entry fee and your deferral credit.
  • The deferral credit is only applicable toward the event registration cost

Click HERE for instructions how to claim your Deferred Registration.  Deadline for Deferral Transfers is September 1, 2021.

 

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