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| Event | Distance | When | Entry fee | Cap |
|---|---|---|---|---|
| Half Marathon | Half Marathon | Nov 8, 20267:30 AM | $100$112 after Oct 1, 2026 | 2,950 |
| Marathon | Marathon | Nov 8, 20267:30 AM | $122$127 after Oct 1, 2026 | 900 |
| 10K | 10K | Nov 8, 20268:00 AM | $83$90 after Oct 1, 2026 | 950 |
| 5K | 5K | Nov 8, 20268:00 AM | $61$67 after Oct 1, 2026 | 950 |
| Virtual 10KVirtual | 10K | Nov 8, 20267:00 AM | $35 | – |
| Virtual 5KVirtual | 5K | Nov 8, 20267:00 AM | $35 | – |
| Virtual Half MarathonVirtual | Half Marathon | Nov 8, 20267:00 AM | $35 | – |
| Virtual MarathonVirtual | Marathon | Nov 8, 20267:00 AM | $35 | – |
Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.
The Half Marathon fee goes up to $112 on Oct 1, 2026.
Online registration closes Nov 8, 2026, unless the race fills first.
At $122, entry is about 22 percent above a typical marathon in Missouri, which costs $100 right now.
A typical finisher at a marathon in Missouri runs 4:41:53, about 10:45 a mile, based on 5 races with published results. Women typically finish in 4:54:52 and men in 4:29:56.
Sunrise on race morning is at about 6:35 AM, and the Half Marathon starts at 7:30 AM. The start sits about 440 feet above sea level.
Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.
Frontier Park, Saint Charles, MO 63301
The pin marks the address the race lists, which is usually the start. The organizers have not shared a course map with us yet.
Around November 8 the day usually runs from 42°F at dawn to 60°F in the afternoon, with measurable rain on about 12% of days. Cold snaps dip to 30°F and hot years reach 73°F.
Based on 75 days within a week of the date over the last 5 years, from historical weather for the start area. Not a forecast.
What the organizers of MO' Cowbell Marathon/Half-Marathon/10K/5K cover on their registration page, in brief.
Schedule and packet pickup
You can purchase new add-ons after completing your registration: Sign in under your RunSignUp account then go to your profile in the upper right corner. Go to upcoming races and make the changes under the MO' Cowbell…
Rules and FAQ
Q: I need to enter my next activity but I keep entering it and my previous activity disappears, how do I fix it? A: In this example, you are overwriting the previous activity. Instead, keep the data the same for the previous activity, and…
Rules and FAQ
HERD 'UNITY. Spread the word, convince your friends to sign up for the Marathon, Half-Marathon or 10K and automatically receive a refund. Refer 4 friends who use your referral code and receive a $15 REFUND / Refer 7 and receive a $30…
Organize this race? Add details or a correction
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 Health and Fitness ExMO' Packet Pickup
Family friendly post race party with lots of food, fun, and music
Registration for the Virtual Run includes:
2026 One-Of-A-Kind Finisher Medal
Shipping and handling of your medal to you
Option to add on race swag