Running Race Calendar in Colorado, United States

Healthy Kids Running Series Spring 2026 - Fort Collins, CO

Fort Collins, Colorado, United States

12 Apr, 2026 (Sun) – 17 May, 2026

Running

6.4K 3.2K 1.6K

Walk Run or Roll for Daniel

Colorado Springs, Colorado, United States

02 Apr, 2026 (Thu) – 09 May, 2026

Cycling, Running

24.1K 5K

The Grand Traverse

Crested Butte, Colorado, United States

29 Mar, 2026 (Sun) – 06 Sep, 2026

$220.00 - $388.00

Skiing, Triathlon, Running, Duathlon, Mountain biking

Ultra +1

Race Through Colorado 1M, 5K, 10K, 13.1, 26.2 - Now Only $20!

Denver, Colorado, United States

28 Mar, 2026 (Sat) – 31 Dec, 2026

$20.00

Running

1.6K 5K 10K Half-Marathon +1

Dogventure Photo Challenge

Niwot, Colorado, United States

01 Mar, 2026 (Sun) – 31 Dec, 2029

$19.99

Running

1.6K

2026 C.O.P.S. WINTER RACE SERIES

Golden, Colorado, United States

07 Jan, 2026 (Wed) – 30 Apr, 2026

Running

5K 10K 15K

Nielson Challenge

Colorado Springs, Colorado, United States

03 Jan, 2026 (Sat) – 02 May, 2026

Running

3.2K +1

Fifty States Half Marathon Club General Membership

Colorado Springs, Colorado, United States

02 May, 2024 (Thu) – 02 Apr, 2034

$85.00

Running

Half-Marathon