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

All-Out Mardi Crawl

Arvada, Colorado, United States

Feb 6, 2027 (Sat)

$20.00 - $65.00

Running

Half-Marathon 10K 5K +2

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

Centennial, Colorado, United States

Feb 13, 2027 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Valentine's Day Run 5K/10K/13.1 Denver/Aurora

Centennial, Colorado, United States

Feb 13, 2027 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Heart Throb 5k

Arvada, Colorado, United States

Feb 13, 2027 (Sat)

$30.00

Running

5K

The Toyota Super Half Marathon™& Game Day 5K™

Colorado Springs, Colorado, United States

Feb 14, 2027 (Sun)

$35.00 - $70.00

Running

Half-Marathon 5K

Highlands Ranch 5k

Highlands Ranch, Colorado, United States

Feb 28, 2027 (Sun)

$38.00

Running

5K

Grand Valley Brew Runs

Grand Junction, Colorado, United States

Mar 13, 2027 (Sat)

$35.00

Running

5K

Lucky Brew Race 5K, 10K, 15k & Half Marathon

Severance, Colorado, United States

Mar 14, 2027 (Sun)

$15.00 - $70.00

Running

5K 10K 15K 1K +1

All-Out Spring Fever

Golden, Colorado, United States

Mar 21, 2027 (Sun)

$20.00 - $65.00

Running

Half-Marathon 10K 5K +2

Central Park 5k

Denver, Colorado, United States

Mar 28, 2027 (Sun)

$25.00

Running

5K

Donut Dash

Denver, Colorado, United States

Apr 4, 2027 (Sun)

$30.00

Running

5K

Platte River Half-Marathon, Relay & 5k

Littleton, Colorado, United States

Apr 7, 2027 (Wed) – Apr 11, 2027

Running

Half-Marathon 5K