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

Berthoud Day 5K

Berthoud, Colorado, United States

Jun 6, 2026 (Sat)

Running

5K

Aiden's Adventure 5k

Colorado Springs, Colorado, United States

Jun 6, 2026 (Sat)

Running

5K 1.6K +1

The Big Run Presented By Brooks

Colorado Springs, Colorado, United States

Jun 2, 2026 (Tue) – Jun 3, 2026

Running

5K 4.8K

Love Hard 5k Fun Run

Denver, Colorado, United States

Jun 1, 2026 (Mon) – Jun 30, 2026

Running

5K +4

Endorphins for Orphans Virtual 5K

Colorado Springs, Colorado, United States

Jun 1, 2026 (Mon) – Sep 7, 2026

$75.00

Running

5K

Mile High Rescue Sixth annual 5K! Running for Rescues! & Summer Kick Off Party

Englewood, Colorado, United States

May 31, 2026 (Sun)

Running

5K 1.6K +2

DRMABPsi 1–5K Walk, Run & Roll

Denver, Colorado, United States

May 30, 2026 (Sat)

Running

5K 4K 3K 2K +2

2026 MTHCF 5K

Fruita, Colorado, United States

May 30, 2026 (Sat)

Running

5.1K

Angelman Syndrome 5K

Colorado Springs, Colorado, United States

May 30, 2026 (Sat)

Running

5K

36th Annual Fire Hydrant 5K & Expo

Fort Collins, Colorado, United States

May 30, 2026 (Sat)

Running

5K

Trinidad Wellness Festival 5K

Trinidad, Colorado, United States

May 30, 2026 (Sat)

Running

5K

Dash4Hope 2026

Greeley, Colorado, United States

May 30, 2026 (Sat)

Running

5K