RunEmu

Ultra Races in Colorado (Page 3)

Browse 45+ upcoming ultra races in Colorado.

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Colorado Cold Rush

Nov 21, 2026
Colorado Springs, CO
31.1M13.1M10K
53°
25°
1%

Sawmill Trail Runs

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

Candy Cane Course - Colorado Springs

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