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Obstacle Race Calendar near Louisville 2025-2026

Explore the top obstacle runs near Louisville for 2025-2026! We've gathered 77 exciting races in the area. Check out our detailed list below to find your next local race.

April 2025
Apr
26
Saturday

Five Star 5K

5 km
Apr
26
Saturday

Earth Day Race

5 km 10 km 15 km
Apr
27
Sunday

Unicorn 5k

5 km
May 2025
May
4
Sunday

Longmont Half

5 km 13 mi
May
4
Sunday

Altitude Elementary Moose Mudder

Obstacle Run 5 km
May
4
Sunday

Fairmount 5k

5 km
May
4
Sunday

RMRR Trophy Series

5 km 5 mi
May
10
Saturday

Carbon Valley Half Marathon

5 km 13 mi
May
11
Sunday

Denver Mother's Day 5K

5 km
May
11
Sunday

Colorado Women's Classic

5 km 10 km 10 mi
May
17-18
Sa - Su

Denver Colfax Marathon

5 km 10 mi 13 mi 26 mi
May
17
Saturday

Canine On the Creek

5 km
May
17
Saturday

Girls on the Run Denver Metro 5K

5 km
May
18
Sunday

Miles for Smiles 5K - Arvada

5 km
May
24-25
Sa - Su

The Ol' College Try 24 Hour Ultra

Backyard Ultra 6 hr 12 hr 24 hr
May
26
Monday

Idaho Springs Pack Burro Race

6 mi
June 2025
Jun
1
Sunday

Crazy Legs Trail Run

Trail Run 10 km
Jun
1
Sunday

Flamingo Day 5K

5 km
Jun
1
Sunday

Stepping Stone

5 km
Jun
1
Sunday

RMRR Trophy Series

4 km
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