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

Resolution Run - Fort Collins

Fort Collins, Colorado, United States

31 Dec, 2026 (Thu)

$25.00

Running

5K

Resolute Runner 5k

Arvada, Colorado, United States

01 Jan, 2027 (Fri)

$34.00

Running

5K

All-Out Polar Prowl

Arvada, Colorado, United States

09 Jan, 2027 (Sat)

$20.00 - $65.00

Running

Half-Marathon 10K 5K +2

All-Out Mardi Crawl

Arvada, Colorado, United States

06 Feb, 2027 (Sat)

$20.00 - $65.00

Running

Half-Marathon 10K 5K +2

Heart Throb 5k

Arvada, Colorado, United States

13 Feb, 2027 (Sat)

$30.00

Running

5K

Highlands Ranch 5k

Highlands Ranch, Colorado, United States

28 Feb, 2027 (Sun)

$38.00

Running

5K

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

Severance, Colorado, United States

14 Mar, 2027 (Sun)

$15.00 - $70.00

Running

5K 10K 15K 1K +1

All-Out Spring Fever

Golden, Colorado, United States

21 Mar, 2027 (Sun)

$20.00 - $65.00

Running

Half-Marathon 10K 5K +2

Central Park 5k

Denver, Colorado, United States

28 Mar, 2027 (Sun)

$25.00

Running

5K

Donut Dash

Denver, Colorado, United States

04 Apr, 2027 (Sun)

$30.00

Running

5K

Platte River Half-Marathon, Relay & 5k

Littleton, Colorado, United States

07 Apr, 2027 (Wed) – 11 Apr, 2027

Running

Half-Marathon 5K

All-Out Beat the Heat

Westminster, Colorado, United States

24 Apr, 2027 (Sat)

$20.00 - $65.00

Running

Half-Marathon 10K 5K +2