Running Race Calendar in Colorado, United States

Clear for Takeoff Virtual 5K

Colorado Springs, Colorado, United States

Jul 20, 2026 (Mon) – Jul 27, 2026

Running

5K

One Is Too Many: Veteran Suicide Awareness 5k and Kids Run

Greeley, Colorado, United States

Jul 19, 2026 (Sun)

Running

5K 1.6K

Barr Trail Mountain Race

Manitou Springs, Colorado, United States

Jul 19, 2026 (Sun)

Running

20.3K

Toni's Trot 5K

La Salle, Colorado, United States

Jul 18, 2026 (Sat)

Running

5K

Spring Creek Memorial Trail Run

Steamboat Springs, Colorado, United States

Jul 18, 2026 (Sat)

Running

15.3K 5K

CU Anschutz Run Club 5K

Aurora, Colorado, United States

Jul 18, 2026 (Sat)

Running

5K

2026 OCA Colorado 5K Panda Run

Denver, Colorado, United States

Jul 18, 2026 (Sat)

Running, Walking

5K 1K

Heritage Eagles 5K

Littleton, Colorado, United States

Jul 18, 2026 (Sat)

Running

5K

49th Annual Manassa Pioneer Days 5K Run

Manassa, Colorado, United States

Jul 18, 2026 (Sat)

Running

5K

Hyrox Hybrid Camp

Frederick, Colorado, United States

Jul 18, 2026 (Sat)

Running

Hyrox Hybrid Class

Festival in the Clouds Firefighter 5K, Fun Run and Doggie Dash

Alma, Colorado, United States

Jul 18, 2026 (Sat)

Running

5K

Summer Splash Prairie Dog Half, 10k, & 5k

Castle Rock, Colorado, United States

Jul 18, 2026 (Sat)

Running

Half-Marathon 10K 5K