RunEmu

Ultra Races in Colorado (Page 5)

Browse 90+ upcoming ultra races in Colorado.

Search by name

Colorado 24 Hour Run

Oct 31, 2026
Fort Collins, CO
24HR24HR12HR12HR6HR6HR
60°
31°
5%

Kessel Run Ultra

Nov 7, 2026
Fruita, CO
50M37.3M20M10M
58°
31°
2%

Colorado 24 Hour Run

Nov 7, 2026
Fort Collins, CO
24HR24HR12HR12HR6HR6HR
58°
30°
4%

Turkey Trails- Denver

Nov 7, 2026
Denver, CO
50M13.1M6.2M3.1M1M
60°
30°
4%

Turkey Trails - Colorado Springs

Nov 8, 2026
Colorado Springs, CO
50M13.1M6.2M3.1M1M
58°
29°
1%

Colorado Cold Rush

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

Candy Cane Course - Colorado Springs

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

Sawmill Trail Runs

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

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%
Search by region
No races in this area