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Races in Colorado - August 2026

Browse 75+ upcoming races in Colorado for August 2026.

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Races in Colorado - August 2026

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Flying Colors 5K Fun Run/Walk

Aug 1, 2026
Craig, CO
5K
89°
50°
3%

Nielson Two Mile Challenge

Aug 1, 2026
Colorado Springs, CO
2M
85°
59°
13%

Aspen Backcountry

Aug 1, 2026
Aspen, CO
Marathon1/2 Marathon
75°
49°
9%

Berry Picker Trail Run

Aug 1, 2026
Vail, CO
4.6M
74°
40°
11%

Kennebec Mountain Run

Aug 1, 2026
Durango, CO
15M
86°
54°
6%

Rocky Mountain Half Marathon

Aug 1, 2026
Estes Park, CO
13.1M5K
79°
49°
8%

Flying Colors 5K

Aug 1, 2026
Craig, CO
5K
89°
50°
3%

Unicorn 5k (South)

Aug 1, 2026
Highlands Ranch, CO
3.1M
87°
60°
8%

Wicked Wine Run

Aug 1, 2026
Denver, CO
5K
90°
60°
5%

Aspen Backcountry Marathon

Aug 1, 2026
Aspen, CO
31.1M26.2M14.6M
75°
49°
9%

2026 Wicked Wine Run Denver

Aug 1, 2026
Denver, CO
5K0.6M
90°
60°
5%

Winter Park 50K

Aug 1, 2026
Winter Park, CO
31.1M13M10K
67°
43°
11%

Sheep Mountain Trail Runs

Aug 1, 2026
Fairplay, CO
53.1M33M14.2M
66°
41°
15%

Kennebec Mountain Run

Aug 1, 2026
Hesperus, CO
15M
85°
53°
7%

Bound for Boston Marathon & Half Marathon - Denver

Aug 2, 2026
Denver, CO
26.2M13.1M
90°
60°
5%

I'm Bound for Boston Marathon and Half Marathon - Denver

Aug 2, 2026
Denver, CO
26.2M13.1M
90°
60°
5%

Eltuck Valley 5K - Lory Summer Trail Series

Aug 4, 2026
Fort Collins, CO
5000M
87°
59°
5%

Eldorado Springs Run for the Cure

Aug 6, 2026
Eldorado Springs, CO
4M
78°
50°
9%

Boulder Stroke and Stride Series

Aug 6, 2026
Boulder, CO
5K
88°
57°
4%

High Five 100

Aug 7, 2026
Lake City, CO
100M
70°
41°
13%
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