Missouri · Marathon · Half Marathon · 42.195K
MO' Cowbell Marathon/Half-Marathon/10K/5K
MO' Cowbell Marathon/Half-Marathon/10K/5K is a marathon, half marathon, 42.195K, 21.0975K and 10K event held in Saint Charles, Missouri. Its next confirmed date is Sunday, November 8, 2026. About 3,000 runners take part across all distances.
- Race day
- November 8, 2026
- Location
- Saint Charles, MO
- Field size
- ~3,000 runners
Race details
- Date
- Sunday, November 8, 2026
- Location
- Saint Charles, Missouri
- Distances
- Marathon, Half Marathon, 42.195K, 21.0975K, 10K, 5K
- Field size
- About 3,000 runners
- Course
- 520 ft gain
- Registration
- runsignup.com
- Official website
- mocowbellmarathon.com
Registration, course & weather
- Registration status
- Open
- Entry fee
- Listed fee for the longest distance, $122 (from mocowbellmarathon.com, checked September 26, 2026)
- Start time
- 7:30 AM CST
- Course profile — Half Marathon
- Loop course; Mostly road, some trail; USATF certified
- Course profile — 10K
- Loop course; Road surface
- Course profile — 5K
- Loop course; Road surface
- Course profile — Marathon
- Loop course; Mostly road, some trail; 520 ft gain, 520 ft loss (estimated from third-party elevation data); USATF certified; Boston qualifier
About the 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, Half-Marathon, 10K, or the 5K includes: Commemorative performance long-sleeve swag One-of-a-Kind finisher medal FREE and convenient parking Free downloadable photos for all participants Two-day…
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Guides from the RaceRove blog
- 8 min read How to Choose Your First Marathon A practical checklist for choosing a first marathon based on course, weather, cutoff, travel, field size and support.
- 7 min read How to Find a 5K, 10K, Half Marathon or Marathon Near You A practical way to find running races near you: pick a distance, decide how far you'll travel, read the listing properly and confirm the details before you register.
- 9 min read How to Run a Race in All 50 States How to plan a 50-state running challenge: set your own rules, group states into trips, build a calendar around the seasons, budget for it and keep track of every finish.
- Blog All guides Planning advice for finding, choosing and travelling to races.
MO' Cowbell Marathon/Half-Marathon/10K/5K: common questions
- When is the MO' Cowbell Marathon/Half-Marathon/10K/5K?
- The next confirmed date is Sunday, November 8, 2026.
- Where is the MO' Cowbell Marathon/Half-Marathon/10K/5K held?
- In Saint Charles, Missouri.
- What distances does the MO' Cowbell Marathon/Half-Marathon/10K/5K offer?
- Marathon, Half Marathon, 42.195K, 21.0975K, 10K and 5K.
- How many people run the MO' Cowbell Marathon/Half-Marathon/10K/5K?
- About 3,000 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
- How do I register for the MO' Cowbell Marathon/Half-Marathon/10K/5K?
- Registration is handled by the organiser at runsignup.com. Entry fees, caps and deadlines are set there.
- Is registration open for the MO' Cowbell Marathon/Half-Marathon/10K/5K?
- Yes — registration is open. Listed fee for the longest distance, $122 (from mocowbellmarathon.com, checked September 26, 2026).
- What time does the MO' Cowbell Marathon/Half-Marathon/10K/5K start?
- 7:30 AM CST.
Plan this race in RaceRove
Save it to your plan, compare it with other races, check typical race-day weather and track your 50-state progress in the interactive app.