Race Discovery

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

436 events found

Sweaty Sweater 5k logo
Dec
19

Sweaty Sweater 5k

Fort Collins, Colorado, United States
Free - $30.00
Running
5K 1.6K
New Year's Run 5K/10K/13.1 Denver/Aurora logo
Dec
26

New Year's Run 5K/10K/13.1 Denver/Aurora

Centennial, Colorado, United States
$30.00 - $45.00
Running
5K 10K Half-Marathon 1.6K +2
A Merry Christmas Run 5K/10K/13.1 DENVER/AURORA logo
Dec
26

A Merry Christmas Run 5K/10K/13.1 DENVER/AURORA

Centennial, Colorado, United States
$30.00 - $45.00
Running
5K 10K Half-Marathon 1.6K +2
Hands & Voices New Year Virtual 5K: Trails to the Summit logo
Dec
31

Hands & Voices New Year Virtual 5K: Trails to the Summit

Boulder, Colorado, United States
$30.00
Running
5K
Resolution Run - Fort Collins logo
Dec
31

Resolution Run - Fort Collins

Fort Collins, Colorado, United States
$25.00
Running
5K
Resolute Runner 5k logo
Jan
01

Resolute Runner 5k

Arvada, Colorado, United States
$39.00
Running
5K
Ymca of Pueblo Hot Chocolate 5K
Jan
02

Ymca of Pueblo Hot Chocolate 5K

Pueblo, Colorado, United States
$30.00
Running
5K
All-Out Polar Prowl logo
Jan
09

All-Out Polar Prowl

Arvada, Colorado, United States
$25.00 - $70.00
Running
Half-Marathon 10K 5K +2
Mlk Jr. Freedom Run 5K/10K/13.1 Denver/Aurora logo
Jan
16

Mlk Jr. Freedom Run 5K/10K/13.1 Denver/Aurora

Centennial, Colorado, United States
$30.00 - $45.00
Running
5K 10K Half-Marathon 1.6K +2
Colorado Cold Snap logo
Jan
17

Colorado Cold Snap

Louisville, Colorado, United States
$39.00 - $44.00
Running
5K 10K
Chilly Willy 5K/10K/Half Marathon - Colorado Springs logo
Jan
23

Chilly Willy 5K/10K/Half Marathon - Colorado Springs

Colorado Springs, Colorado, United States
$30.00 - $60.00
Running
5K 10K Half-Marathon 13.1K +5
Freakin Freezin 5K - Denver logo
Jan
24

Freakin Freezin 5K - Denver

Denver, Colorado, United States
$30.00 - $35.00
Running
5K