RunEmu

Running Races in Colorado

Explore 692+ upcoming races in Colorado, including marathons, 5Ks, trail races, and more with weather and registration links.

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Time to Paddy 5K/10K and Lucky 13.1

Feb 28, 2026
Westminster, CO
13.1M10K5K1M
51°
22°
3%

Cupid's Undie Run - Denver

Feb 28, 2026
Denver, CO
1M
49°
21°
3%

Uncle Clyde's Run and Slide

Feb 28, 2026
Durango, CO
1.5HR
47°
20°
4%

Time to Paddy 5k/10k & Lucky 13.1 - Denver

Feb 28, 2026
Westminster, CO
13.1M6.2M3.1M1M
51°
22°
3%

Time to Paddy 5k/10k & Lucky 13.1 - Colorado Springs

Mar 1, 2026
Colorado Springs, CO
13.1M6.2M3.1M1M
50°
23°
1%

That Dam Run

Mar 1, 2026
Aurora, CO
13.1M10K5K
48°
22°
2%

Lee Martinez Park T&H 10K

Mar 1, 2026
Fort Collins, CO
503M
50°
23°
3%

Louisville Spring Splash & Dash Series

Mar 1, 2026
Louisville, CO
1M
51°
24°
6%

RMRR March Trophy Series

Mar 1, 2026
Littleton, CO
5K
50°
20°
5%

Time to Paddy 5K/10K and Lucky 13.1

Mar 1, 2026
Colorado Springs, CO
13.1M10K5K1M
50°
23°
1%

Louisville Winter Splash & Dash Series

Mar 1, 2026
Louisville, CO
1M
51°
24°
6%

RMRR Trophy Series - March

Mar 1, 2026
Littleton, CO
5K
50°
20°
5%

Nielson Two Mile Challenge

Mar 7, 2026
Colorado Springs, CO
2M
52°
25°
2%

Run for Mental Health 5K/10K/13.1 DENVER/AURORA

Mar 7, 2026
Centennial, CO
13.1M10K5K1M
51°
25°
3%

Beer and Donut Hole Miles

Mar 7, 2026
Arvada, CO
1M
53°
23°
5%

4th Anniversary Beer and Donut Hole Miles

Mar 7, 2026
Arvada, CO
1M
53°
23°
5%

SuperHeroes Run 5K/10K/13.1 DENVER/AURORA

Mar 7, 2026
Centennial, CO
13.1M10K5K1M
51°
25°
3%

Nielson Challenge

Mar 7, 2026
Colorado Springs, CO
2M
52°
25°
2%

LWC Run/Walk 5K Costa Rica Fundraiser

Mar 7, 2026
Denver, CO
3.1M
53°
24°
3%

Runnin' of the Green 7K

Mar 8, 2026
Denver, CO
4.3M
53°
25°
3%

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