5K Races in Colorado 2026 | Upcoming Races & Dates | My Next Race

There are 272 5K races in Colorado scheduled for 2026. The next is the HRCA Happy Hour Half K in Littleton on June 19. Colorado 5K races run primarily June.

Resolution Run - Fort Collins

Thu, Dec 31 · Fort Collins, CO Fort Collins

5K

From $25 Closed

Resolute Runner 5k

Fri, Jan 1 · Arvada, CO Arvada

5k

From $29 Open

All-Out Polar Prowl

Sat, Jan 9 · Arvada, CO Arvada

VIRTUAL 5K5K10K +3

From $20 Open

MLK Jr. Freedom Run 5K/10K/13.1 DENVER/AURORA

Sat, Jan 16 · Centennial, CO Centennial

Family Fun Run 1 Mile5K Registration5K/10K/13.1 Eco-Registration (No Shirt) +3

From $30 Open

All-Out Mardi Crawl

Sat, Feb 6 · Arvada, CO Arvada

5K5KVIRTUAL 5K +9

From $20 Open

Heart Throb 5k

Sat, Feb 13 · Arvada, CO Arvada

5k

From $25 Open

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

Sun, Feb 14 · Colorado Springs, CO Colorado Springs

5KHalf Marathon

From $35 Closed

Highlands Ranch 5k

Sun, Feb 28 · Highlands Ranch, CO Highlands Ranch

5k5k

From $33 Open

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

Sun, Mar 14 · Severance, CO Severance

Kids Fun RunKids Fun RunLucky Brew 5K +7

From $15 Closed

All-Out Spring Fever

Sun, Mar 21 · Golden, CO Golden

VIRTUAL 5KVIRTUAL 5K5K +9

From $20 Open

Central Park 5k

Sun, Mar 28 · Denver, CO Denver

5k Run/Walk5k Run/Walk

From $20 Open

Donut Dash

Sun, Apr 4 · Denver, CO Denver

Virtual 5KVirtual 5K5K +1

From $30 Open

Platte River Half-Marathon, Relay & 5k

Sun, Apr 11 · Littleton, CO Littleton

2027 5k5k5k +6

From $35 Closed

All-Out Beat the Heat

Sat, Apr 24 · Westminster, CO Westminster

5KVIRTUAL 5K5K +9

From $20 Open

Unicorn 5k (Denver-East)

Sun, Apr 25 · Denver, CO Denver

5k5k1/2 Mile(ish) Saunter +1

From $13 Open

Greenland Trail Races

Sat, May 1 · Larkspur, CO Larkspur

4 Mile4M Trail Races8 Mile +9

From $25 Open

The Colorado Marathon

Sun, May 2 · Fort Collins, CO Fort Collins

2027 10k5K5K +9

From $35 Closed

Colterris Wine Run 5k

Sat, May 8 · Palisade, CO Palisade

5k5k

From $30 Open

Colorado Women's Classic - Westminster

Sun, May 9 · Westminster, CO Westminster

5k5k10k +3

From $35 Closed

Denver Mother's Day 5K

Sun, May 9 · Denver, CO Denver

5K5K

From $25.99 Closed

Weld Your Mettle Running Festival

Sat, Jun 5 · Eaton, CO Eaton

7k walk or run (4.3 miles)7k walk or run (4.3 miles)7K Ruck (4.3 Miles) +23

From $35 Closed

Colorado 13er (Half Marathon/10k/5k)

Sun, Jun 6 · Louisville, CO Louisville

5k5k10k +3

From $30 Closed