5K races in Colorado, United States — 2026 running calendar

Aug

15

Miles for Migraine Colorado

Denver, Colorado, United States

Running

3.2K 5K

Aug

15

Frontier Academy Community 5K

Greeley, Colorado, United States

Running

5K

Aug

15

Cwcs 5K Color Fun Run

Montrose, Colorado, United States

Running

5K

Aug

15

Sunrise Stampede

Longmont, Colorado, United States

Running

5K 1.6K +1

Aug

15

Run for PB& J 5K/10K/13.1 DENVER/AURORA

Centennial, Colorado, United States

Running

5K 10K Half-Marathon 1.6K +2

Aug

09

The Bullfrog Summer Surge

Lakewood, Colorado, United States

Running

5K 0.8K

Aug

09

Pancake Stampede 5K

Littleton, Colorado, United States

Running

5K

Aug

08

5K at the Fair

Durango, Colorado, United States

Running

5K

Aug

08

Arapahoe Warrior 5K

Centennial, Colorado, United States

Running

5K

Aug

08

Escalante Days 5K

Dolores, Colorado, United States

Running

5K

Aug

07

RMRR August Trophy Series

Centennial, Colorado, United States

Running

5K

Aug

07

Choice City Running Festival

Fort Collins, Colorado, United States

Running Walking

1.6K 5K 10K Half-Marathon +7