Race Discovery

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

513 events found

All-Out Spring Fever logo
Mar
21

All-Out Spring Fever

Golden, Colorado, United States
$25.00 - $70.00
Running
Half-Marathon 10K 5K +2
Always Hope Easter Run Denver/Aurora logo
Mar
27

Always Hope Easter Run Denver/Aurora

Centennial, Colorado, United States
$30.00 - $45.00
Running
5K 10K Half-Marathon 1.6K +2
Central Park 5k logo
Mar
28

Central Park 5k

Denver, Colorado, United States
$30.00
Running
5K
Grand Valley Oncology - Life In Color 5K logo
Apr
03

Grand Valley Oncology - Life In Color 5K

Grand Junction, Colorado, United States
$35.00
Running Walking
5K
Donut Dash logo
Apr
04

Donut Dash

Denver, Colorado, United States
$30.00
Running
5K
Platte River Half-Marathon, Relay & 5k logo
Apr
07

Platte River Half-Marathon, Relay & 5k

Littleton, Colorado, United States
Running
Half-Marathon 5K
Run for Pb&J 5k/10k/13.1 Denver/Aurora logo
Apr
10

Run for Pb&J 5k/10k/13.1 Denver/Aurora

Centennial, Colorado, United States
$30.00 - $45.00
Running
5K 10K Half-Marathon 1.6K +2
Run for Bagels 5K/10K/13.1 Denver/Aurora logo
Apr
10

Run for Bagels 5K/10K/13.1 Denver/Aurora

Centennial, Colorado, United States
$30.00 - $45.00
Running
5K 10K Half-Marathon 1.6K +2
Spring Fling Prairie Dog Half, 10k, & 5k logo
Apr
11

Spring Fling Prairie Dog Half, 10k, & 5k

Arvada, Colorado, United States
$39.00 - $74.00
Running
Half-Marathon 10K 5K
Run for Donut Denver/Aurora logo
Apr
24

Run for Donut Denver/Aurora

Centennial, Colorado, United States
$30.00 - $45.00
Running
5K 10K Half-Marathon 1.6K +8
All-Out Beat the Heat logo
Apr
24

All-Out Beat the Heat

Westminster, Colorado, United States
$20.00 - $65.00
Running
Half-Marathon 10K 5K +2
Bigfoot Half Marathon logo
Apr
24

Bigfoot Half Marathon

Estes Park, Colorado, United States
$45.00 - $120.00
Running
Half-Marathon 5K