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Races in Colorado - December 2026

Browse 20+ upcoming races in Colorado for December 2026.

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Races in Colorado - December 2026

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Sawmill Trail Runs

Dec 5, 2026
Pine, CO
31.68M16.14M88M
39°
10°
2%

Nielson Two Mile Challenge

Dec 5, 2026
Colorado Springs, CO
2M
46°
20°
1%

Candy Cane Course - Colorado Springs

Dec 5, 2026
Colorado Springs, CO
50M9.3M6.2M3.1M1M
46°
20°
1%

Onesie Dash

Dec 5, 2026
Red Feather Lakes, CO
1M
37°
16°
3%

Candy Cane Course

Dec 5, 2026
Westminster, CO
9.3M10K5K1M
49°
21°
2%

Candy Cane Course

Dec 5, 2026
Denver, CO
9.3M10K5K1M
47°
19°
1%

Toy Drop

Dec 5, 2026
Loveland, CO
9.3M10K
45°
15°
3%

All-Out Fa La La

Dec 5, 2026
Westminster, CO
13.1M10K5K
49°
21°
2%

Candy Cane Course

Dec 6, 2026
Colorado Springs, CO
9.3M10K5K1M
46°
20°
1%

RMRR December Trophy Series

Dec 6, 2026
Denver, CO
4.5M
47°
19°
1%

RMRR Trophy Series - December

Dec 6, 2026
Denver, CO
4.5M
47°
19°
1%

Candy Cane Course - Denver

Dec 6, 2026
Westminster, CO
50M9.3M6.2M3.1M1M
49°
20°
2%

WinterFest 5k & Fun Run

Dec 12, 2026
Thornton, CO
1200M3.1M
46°
19°
2%

Winterfest 5K

Dec 12, 2026
Thornton, CO
5K
46°
19°
2%

Santa's Dash for Cash

Dec 19, 2026
Denver, CO
5K1M
43°
16°
1%

Santa's Dash for Ca$h

Dec 19, 2026
Denver, CO
3.1M
43°
16°
1%

Ugly Sweater 5K

Dec 20, 2026
Denver, CO
5K
43°
16°
1%

Aspen parkrun

Dec 26, 2026
Aspen, CO
5K
29°
9°
10%

South Boulder Creek parkrun

Dec 26, 2026
Boulder, CO
5K
45°
20°
4%

Resolution Run - Fort Collins

Dec 31, 2026
Fort Collins, CO
5K
43°
17°
2%
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