MO Cowbell Marathon
MO Cowbell Marathon race day weather
Cool start, warming finish
Runners will face temperatures starting at 36°F and rising to 55°F by late laps. Winds will be light, averaging 13 mph from the WSW, making it a non-factor for pacing. With humidity at 66%, hydration will be crucial, especially during the warmer later laps. Runners should consider layering for the pre-race wait to stay comfortable.
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MO Cowbell Marathon route and elevation
The MO Cowbell Marathon course has about 334 ft (102 m) of climbing and 339 ft (103 m) of descent, and finishes near the elevation it starts. It is hillier than 53% of the marathon courses racecast.io has mapped, measured by what the hills cost in time. The hardest mile is mile 21, with 70 ft (21 m) of climbing and a 1.3% average grade.
Biggest climbs
- Miles 6.4 to 10.8: climbs about 110 ft (33 m).
- Miles 15.9 to 17.4: climbs about 85 ft (27 m).
- Miles 20 to 21.2: climbs about 85 ft (26 m).
What the hills cost
- 3:30 on a flat course is about 3:31 here (1 minute slower).
- 4:00 on a flat course is about 4:01 here (1 minute slower).
- 4:30 on a flat course is about 4:31 here (1 minute slower).
Hills only, priced mile by mile on the course map. The pace calculator above adds the race-day weather.
Even-effort splits for a 3:30, 4:00 or 4:30 finish
| Mile | Climb | Descent | 3:30 | 4:00 | 4:30 |
|---|---|---|---|---|---|
| 1 | 24 ft | 24 ft | 7:58 | 9:06 | 10:14 |
| 2 | 2 ft | 11 ft | 7:56 | 9:04 | 10:12 |
| 3 | 4 ft | 7 ft | 7:57 | 9:06 | 10:14 |
| 4 | 8 ft | 7 ft | 7:58 | 9:06 | 10:15 |
| 5 | 14 ft | 4 ft | 8:04 | 9:12 | 10:21 |
| 6 | 8 ft | 10 ft | 7:57 | 9:06 | 10:15 |
| 7 | 8 ft | 11 ft | 7:58 | 9:06 | 10:14 |
| 8 | 10 ft | 8 ft | 7:59 | 9:08 | 10:16 |
| 9 | 25 ft | 3 ft | 8:09 | 9:18 | 10:28 |
| 10 | 50 ft | 18 ft | 8:14 | 9:25 | 10:35 |
| 11 | 50 ft | 14 ft | 8:16 | 9:27 | 10:38 |
| 12 | 11 ft | 92 ft | 7:40 | 8:46 | 9:52 |
| 13 | 5 ft | 9 ft | 7:58 | 9:06 | 10:14 |
| 14 | 7 ft | 7 ft | 7:58 | 9:07 | 10:15 |
| 15 | 4 ft | 2 ft | 8:00 | 9:07 | 10:16 |
| 16 | 14 ft | 9 ft | 8:00 | 9:10 | 10:18 |
| 17 | 14 ft | 11 ft | 8:00 | 9:08 | 10:17 |
| 18 | 74 ft | 31 ft | 8:19 | 9:31 | 10:42 |
| 19 | 5 ft | 57 ft | 7:47 | 8:53 | 10:00 |
| 20 | 9 ft | 7 ft | 7:59 | 9:07 | 10:16 |
| 21 | 70 ft | 3 ft | 8:31 | 9:45 | 10:57 |
| 22 | 20 ft | 76 ft | 7:46 | 8:52 | 9:59 |
| 23 | 7 ft | 17 ft | 7:55 | 9:03 | 10:11 |
| 24 | 9 ft | 10 ft | 7:58 | 9:07 | 10:15 |
| 25 | 3 ft | 3 ft | 7:59 | 9:06 | 10:15 |
| 26 | 10 ft | 7 ft | 7:59 | 9:08 | 10:17 |
| Last 0.2 | 1 ft | 3 ft | 1:45 | 2:00 | 2:14 |
Explore the MO Cowbell Marathon course with the weather and your pace along the route, or compare it with other races.
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About the MO Cowbell Marathon
MO' Cowbell Marathon has run through St. Charles, Missouri since 2011, started by local organizers to host a family-friendly race for the community. The USATF-certified course starts and finishes along the Missouri River in Frontier Park, staying flat for about ten miles before a two-mile hilly stretch on the Little Hills Expressway and a downhill final mile to the finish. It qualifies for the Boston, New York City, London and Chicago marathons.