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

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

Spring Creek Memorial Trail Run

Steamboat Springs, Colorado, United States

Jul 18, 2026 (Sat)

Running

15.3K 5K

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

Alma, Colorado, United States

Jul 18, 2026 (Sat)

Running

5K

PNAAF 5K Wellness Challenge

Colorado Springs, Colorado, United States

Jul 16, 2026 (Thu)

Running

5K

Heatwave Half Marathon - Colorado Springs

Colorado Springs, Colorado, United States

Jul 12, 2026 (Sun)

Running

1.6K 5K 10K Half-Marathon +1

Cookie Chase

Denver, Colorado, United States

Jul 11, 2026 (Sat)

Running

5K

All-Out Dog Days

Westminster, Colorado, United States

Jul 11, 2026 (Sat)

Running

Half-Marathon 10K 5K +2

Heatwave Half Marathon - Denver

Littleton, Colorado, United States

Jul 11, 2026 (Sat)

Running

1.6K 5K 10K Half-Marathon +1

BRR All-Comers Summer Track & Field Series #3

Boulder, Colorado, United States

Jul 9, 2026 (Thu)

Running

Ultra 1.6K 5K +1

HRCA Independence Day 5K

Littleton, Colorado, United States

Jul 4, 2026 (Sat)

Running

5K

Independence Day Freedom 5K

Buena Vista, Colorado, United States

Jul 4, 2026 (Sat)

Running

5K 3K