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

Saturday, October 2 - Sunday, October 3, 2021 Saint Charles, MO 63301 US Directions
Weekend Challenge

Participate in the WEEKEND CHALLENGE by adding the Saturday Evening 5K during registration for your Sunday event.

  • In addition to the medals for each event you will receive special swag for completing the WEEKEND CHALLENGE.

We use cookies to offer you a better browsing experience. Read how we use cookies and how you can control them by visiting our Privacy Policy. If you continue to use this site, you consent to use all cookies.