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

Sep

19

Wellington STAR Foundation 5K 10K

Wellington, Colorado, United States

$15.00 - $57.00

Running

5K 10K +2

Sep

19

Montbello Alive! 5K

Denver, Colorado, United States

$25.00

Running

5K

Sep

20

Expo Park XC Runs

Aurora, Colorado, United States

$24.00 - $30.00

Running

5K 2K 3K 4K +1

Sep

20

20th Annual Golden Gallop

Golden, Colorado, United States

$50.00 - $55.00

Running

5K 10K 20K

Sep

20

Chile & Frijole Hot to Trot 5K & 10K

Pueblo, Colorado, United States

$35.00 - $40.00

Running

5K 10K

Sep

20

Farmers 5000

Wheat Ridge, Colorado, United States

$10.00 - $30.00

Running

5K +1

Sep

20

Connection 5k

Carbondale, Colorado, United States

$20.00

Running

5K

Sep

25

NW Open Spaces 5k XC PR Challenge

Northglenn, Colorado, United States

Running

5K BOYS VARSITY GIRLS VARSITY

Sep

25

Boggy Draw Bear Chase

Dolores, Colorado, United States

Running

3K 5K

Sep

26

Oktoberfest Run 5K/10K/13.1 DENVER/AURORA

Centennial, Colorado, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Sep

26

Lisa Nelson’s Mustang Stampede 5K

Arvada, Colorado, United States

$30.00

Running

5K

Sep

26

25th Annual Black Canyon Triathlon

Montrose, Colorado, United States

$20.00 - $140.00

Triathlon Running

Youth Individual Triathlon Entry Adult Individual Triathlon Entry 2-3 Person Youth Team Triathlon Entry 2-3 Person Adult Team Triathlon Entry +3