Running
Marathon
42.2 km
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Race month
November · 39°–55°
Surface
asphalt
Distances
42.2k, 21.1k, 10k, 5k
Distances
Running
Half Marathon
21.1 km
Running
10K
10 km
Running
5K
5 km
Finish-time calculator
Your finish time
Slide to your target pace — and see when you’ll hit the line.
6:00
min / km
← faster · 2:0012:00 · easier →
4:13:10
Estimated finish · 42.2 km
10 km1:00:00
5 km30:00
Where am I when? · Splits
Start
0:00
5 km
30:00
10 km
1:00:00
15 km
1:30:00
20 km
2:00:00
Half
2:06:35
25 km
2:30:00
30 km
3:00:00
35 km
3:30:00
40 km
4:00:00
Finish
4:13:10
Estimates only · form, weather, and hills can change the result.
Course & climate
Typical weather in St. Charles
Monthly averages based on historical data (2000–present).
November
55°39°
- Sunrise
- 06:46
- Sunset
- 16:49
Surface mix
- 100% asphalt
What to expect
What makes this race distinct — for training and race day.
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.
Massage
Yes
What does it cost?
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
- Spirited neighborhood crowds and volunteers
Stay & get to the start
Getting there
Assumed starting point
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Estimating travel…
Hotels near the start
Last updated: Jun 6, 2026, 12:26:20 AM
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