Race Discovery

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

362 events found

Unicorn 5k (North) logo
Jun
20

Unicorn 5k (North)

Thornton, Colorado, United States
Running
5K 1K
Run Juneteenth Day 5K/10K/13.1 DENVER/AURORA logo
Jun
20

Run Juneteenth Day 5K/10K/13.1 DENVER/AURORA

Centennial, Colorado, United States
Running
5K 10K Half-Marathon 1.6K +2
Garden of the Gods 10 Mile/10K and Trail Run logo
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
The Bullfrog Splashdown logo
Jun
14

The Bullfrog Splashdown

Littleton, Colorado, United States
Running
10K 5K 2.4K 8.9K
Treat Trot Colorado Springs logo
Jun
14

Treat Trot Colorado Springs

Colorado Springs, Colorado, United States
Running
1.6K 5K 10K 15K
Treat Trot - Denver logo
Jun
13

Treat Trot - Denver

Thornton, Colorado, United States
Running
1.6K 5K 10K 15K
Holy Hammers Hustle for Habitat logo
Jun
13

Holy Hammers Hustle for Habitat

Parker, Colorado, United States
Running
4.8K
Sam's Rainbow Run
Jun
13

Sam's Rainbow Run

Fort Collins, Colorado, United States
Running
5K 1.6K
Tutu Dash 5K logo
Jun
13

Tutu Dash 5K

Broomfield, Colorado, United States
Running
5K 1.6K
All-Out Summer Breeze logo
Jun
13

All-Out Summer Breeze

Arvada, Colorado, United States
Running
Half-Marathon 10K 5K +2
Denver Miles for Melanoma 5K logo
Jun
13

Denver Miles for Melanoma 5K

Denver, Colorado, United States
Running
5K
Jodi's Race 5K logo
Jun
13

Jodi's Race 5K

Denver, Colorado, United States
Running
5K