Race Discovery

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

362 events found

6 Dot Dash logo
Sep
12

6 Dot Dash

Littleton, Colorado, United States
$40.00
Running
5K
RMRR September Trophy Series logo
Sep
13

RMRR September Trophy Series

Thornton, Colorado, United States
$10.00
Running
10K 5K
El Grito 5k ( )
Sep
13

El Grito 5k ( )

Denver, Colorado, United States
Free - $30.00
Running
5K
9/11 Heroes Run - Denver, Colorado logo
Sep
13

9/11 Heroes Run - Denver, Colorado

Denver, Colorado, United States
Free - $45.00
Running
5K 1.6K +3
Severance Glow 5K Run or Walk logo
Sep
18

Severance Glow 5K Run or Walk

Severance, Colorado, United States
$40.00
Running
5K
Miles 4 Madison 5K & 1K logo
Sep
19

Miles 4 Madison 5K & 1K

Littleton, Colorado, United States
$25.00
Running
5K 1K
All-Out Fall Fest logo
Sep
19

All-Out Fall Fest

Westminster, Colorado, United States
$35.00 - $80.00
Running
Half-Marathon 10K 5K +2
Montbello Alive! 5K logo
Sep
19

Montbello Alive! 5K

Denver, Colorado, United States
$25.00
Running
5K
Gummball 5K logo
Sep
19

Gummball 5K

Brighton, Colorado, United States
$30.00
Running
5K
Wellington STAR Foundation 5K 10K logo
Sep
19

Wellington STAR Foundation 5K 10K

Wellington, Colorado, United States
$15.00 - $53.00
Running
5K 10K +2
Beulah Challenge and OverIt Series logo
Sep
19

Beulah Challenge and OverIt Series

Beulah, Colorado, United States
$20.00 - $180.00
Running
Half-Marathon 10K 5K +2
Denver: Walk With Autism and Resource Fair logo
Sep
19

Denver: Walk With Autism and Resource Fair

Denver, Colorado, United States
$25.00
Running
5K