Race Discovery

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

436 events found

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 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
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
DoNot Stop Half Marathon/5K/10K - Colorado Springs logo
Apr
24

DoNot Stop Half Marathon/5K/10K - Colorado Springs

Colorado Springs, Colorado, United States
Free - $42.00
Running
Kid's Dash 1.6K 5K 10K +5
Unicorn 5k (Denver-East) logo
Apr
25

Unicorn 5k (Denver-East)

Denver, Colorado, United States
$17.00 - $41.00
Running
5K 3.2K
DoNot Stop Half Marathon/5K/10K - Denver logo
Apr
25

DoNot Stop Half Marathon/5K/10K - Denver

Denver, Colorado, United States
Free - $55.00
Running
Kid's Dash 1.6K 5K 10K +4
The Colorado Marathon logo
May
02

The Colorado Marathon

Fort Collins, Colorado, United States
Running
Marathon Half-Marathon 5K 10K
Emerge 5K logo
May
02

Emerge 5K

Boulder, Colorado, United States
Free
Running
5K
Run for Chocolate 5k/10k/13.1 Denver/Aurora logo
May
08

Run for Chocolate 5k/10k/13.1 Denver/Aurora

Centennial, Colorado, United States
$30.00 - $45.00
Running
5K 10K Half-Marathon 1.6K +8
Colterris Wine Run 5k logo
May
08

Colterris Wine Run 5k

Palisade, Colorado, United States
$30.00
Running
5K