Running
Marathon
42.2 km
Start: Nov 10, 06:30 AM
MO' Cowbell Marathon
Loading map…
Road runs in United States, St. Charles
Distances
Running
Half Marathon
21.1 km
Start: Nov 10, 06:30 AM
Running
10K
10 km
Start: Nov 10, 07:00 AM
Running
5K
5 km
Start: Nov 10, 07:00 AM
About
A fast, flat, family-friendly race held in St. Charles, Missouri, with routes for marathon, half-marathon, 10K, and 5K. The course starts and finishes along the Missouri River near historic St. Charles.
Catering & aid stations
Water, Gatorade Endurance Formula, portable restrooms, GU gels at mile 7.25, and food provided at the finish.
Pacers
Pace groups use a corral start with designated pace-per-mile signs (e.g., 10 min/mile). Walkers are welcome and asked to maintain a 16-minute mile pace; slower walkers use sidewalks. Timed first-half mileages enforce time limits: half marathon course reopens at 20 minutes after start and closes at 2 p.m.; marathon enforces a 6.5-hour limit.
Surface mix
- 100% asphalt
Typical weather in St. Charles
Monthly averages based on historical data (2000–present).
Jan40°24°
↑ 07:19
↓ 17:04
Feb44°26°
↑ 06:55
↓ 17:39
Mar56°37°
↑ 07:13
↓ 19:10
Apr66°47°
↑ 06:25
↓ 19:39
May75°58°
↑ 05:50
↓ 20:08
Jun84°67°
↑ 05:37
↓ 20:29
Jul87°71°
↑ 05:50
↓ 20:27
Aug86°70°
↑ 06:17
↓ 19:57
Sep80°62°
↑ 06:45
↓ 19:11
Oct67°51°
↑ 07:12
↓ 18:24
Nov55°39°
↑ 06:46
↓ 16:49
Dec44°29°
↑ 07:14
↓ 16:42
What's included in entry
- Commemorative performance long-sleeve top
- Collectible cowbell
- Top-quality finisher’s medal
- Cowbell car window sticker
- Virtual goody bag
- Water stations
- Baggage check
- Music and course entertainment
- Medical stations
- Massage therapy
- Spirited neighborhood crowds and volunteers
Last updated: Jun 6, 2026, 12:26:20 AM
Get RaceAlerts
We'll email you when races match your filters. No spam — only what fits your goals.
Related runs
On your marks
Loading race details…