Sunday, November 8 · 5K · 10K · Half Marathon · Marathon · Saint Charles, MO
MO' Cowbell Marathon/Half-Marathon/10K/5K
Don't miss the fun and excitement of the 15th annual MO' Cowbell Race on November 8, 2026 ! Four events to choose from on Sunday morning, the Marathon, the Half-Marathon, 10K or the 5K. Flat & fast courses, perfect for beginners or those who want to set a new personal best! Registration for the Marathon…
Start line: Frontier Park
8 weeks to race day — get a training plan
A week-by-week plan scaled to Sunday, November 8, built around the St. Louis run clubs on your training days — shareable by URL, no account needed.
Build my plan →Train for it with a crew
A 5K is twelve weeks of Saturdays away, even from the couch. Run clubs in St. Louis →
Frequently asked
- When is the MO' Cowbell Marathon/Half-Marathon/10K/5K?
- The next MO' Cowbell Marathon/Half-Marathon/10K/5K is Sunday, November 8 in Saint Charles, MO.
- Where does the MO' Cowbell Marathon/Half-Marathon/10K/5K start?
- The MO' Cowbell Marathon/Half-Marathon/10K/5K starts at Frontier Park in Saint Charles, MO.
- What distances does the MO' Cowbell Marathon/Half-Marathon/10K/5K offer?
- The MO' Cowbell Marathon/Half-Marathon/10K/5K offers Marathon, Half Marathon, 10K and 5K.
- How do I register for the MO' Cowbell Marathon/Half-Marathon/10K/5K?
- You can register for the MO' Cowbell Marathon/Half-Marathon/10K/5K on RunSignup. Use the Register link above; RunVibe does not sell registrations directly.
Listed on RunSignup. Race details are the organiser’s — confirm the date and start time with them before you travel.