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

Jun

20

Run for the River 5k Boulder

Boulder, Colorado, United States

Running

5K

Jun

14

The Bullfrog Splashdown

Littleton, Colorado, United States

Running

10K 5K 2.4K 8.9K

Jun

14

Garden of the Gods 10 Mile/10K and Trail Run

Colorado Springs, Colorado, United States

Running Trail running

16.1K 10K 4.7K

Jun

13

Holy Hammers Hustle for Habitat

Parker, Colorado, United States

Running

4.8K

Jun

13

Jodi's Race 5K

Denver, Colorado, United States

Running

5K

Jun

13

St Mary's Church "Loop the Lake 5K" at Lathrop State Park

Walsenburg, Colorado, United States

Running

5K

Jun

13

Denver Miles for Melanoma 5K

Denver, Colorado, United States

Running

5K

Jun

13

Tutu Dash 5K

Broomfield, Colorado, United States

Running

5K 1.6K

Jun

13

Sam's Rainbow Run

Fort Collins, Colorado, United States

Running

5K 1.6K

Jun

13

Stepping Stone 5K

Littleton, Colorado, United States

Running

5K 2.5K

Jun

07

DU Dash Colorado

Palmer Lake, Colorado, United States

Running

5K 10K

Jun

06

StepUp For Women And Recovery

Fort Collins, Colorado, United States

Running

5K