Race Discovery

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

436 events found

Erie Half & 5k logo
Aug
15

Erie Half & 5k

Erie, Colorado, United States
$30.00 - $55.00
Running
Half-Marathon 5K
James Test Site
Aug
16

James Test Site

Lyons, Colorado, United States
Free
Running
5K
Ram Run 5K logo
Aug
21

Ram Run 5K

Denver, Colorado, United States
$10.00 - $30.00
Running
5K 1.6K
Byers Peak Stampede Half Marathon & 5K Run logo
Aug
21

Byers Peak Stampede Half Marathon & 5K Run

Fraser, Colorado, United States
$45.00 - $65.00
Running
Half-Marathon 4.8K
Wyoming Invitational logo
Sep
04

Wyoming Invitational

Cheyenne, Colorado, United States
Running
5K
Widefield Cross Country Invitational logo
Sep
04

Widefield Cross Country Invitational

Colorado Springs, Colorado, United States
Running
3.2K 5K
Summit Middle School Invitational logo
Sep
02

Summit Middle School Invitational

Breckenridge, Colorado, United States
Running
5K
Roost Rebellion Relays logo
Sep
02

Roost Rebellion Relays

Denver, Colorado, United States
Running
5.1K Elite Relay
Sporting Chance Initiative: Virtual Charity 5K logo
Sep
02

Sporting Chance Initiative: Virtual Charity 5K

Fort Collins, Colorado, United States
$15.00
Running
5K
Wine Run 5k at The Winery at Holy Cross Abbey logo
Aug
30

Wine Run 5k at The Winery at Holy Cross Abbey

Canon City, Colorado, United States
Running
5K
Flyin' Lion 5K logo
Aug
29

Flyin' Lion 5K

Littleton, Colorado, United States
$15.00 - $30.00
Running
5K 1.6K +3
Historic Elizabeth Main Street 5K & Family Color Run logo
Aug
29

Historic Elizabeth Main Street 5K & Family Color Run

Elizabeth, Colorado, United States
Running
5K 1.6K