Running Races in Colorado 2026 | Find & Register | My Next Race

There are 403 running races in Colorado in 2026 across 102 cities. The next upcoming race is the Yampa River Festival 2026 in Steamboat Springs on May 30. Popular distances include 5K races, trail runs, half marathons.

Resolute Runner 5k

Fri, Jan 1 · Arvada, CO Arvada

Road 5k

From $29 Open

All-Out Polar Prowl

Sat, Jan 9 · Arvada, CO Arvada

Virtual VIRTUAL 5K5K10K +3

From $20 Open

All-Out Mardi Crawl

Sat, Feb 6 · Arvada, CO Arvada

Virtual VIRTUAL 5K5K5K +9

From $20 Open

Heart Throb 5k

Sat, Feb 13 · Arvada, CO Arvada

Road 5k

From $25 Open

Highlands Ranch 5k

Sun, Feb 28 · Highlands Ranch, CO Highlands Ranch

Road 5k5k

From $33 Open

Erin Go Bragh 7.77k

Sat, Mar 13 · Westminster, CO Westminster

Road 7.77k7.77k

From $33 Open

All-Out Spring Fever

Sun, Mar 21 · Golden, CO Golden

Virtual 5K5KVIRTUAL 5K +9

From $20 Open

Central Park 5k

Sun, Mar 28 · Denver, CO Denver

Road 5k Run/Walk5k Run/Walk

From $20 Open

Donut Dash

Sun, Apr 4 · Denver, CO Denver

Road 5K5KVirtual 5K +1

From $30 Open

All-Out Beat the Heat

Sat, Apr 24 · Westminster, CO Westminster

Virtual 5K5KVIRTUAL 5K +9

From $20 Open

Unicorn 5k (Denver-East)

Sun, Apr 25 · Denver, CO Denver

Road 5k5k1/2 Mile(ish) Saunter +1

From $13 Open Closing Soon

Greenland Trail Races

Sat, May 1 · Larkspur, CO Larkspur

Ultra 4M Trail Races4 Mile8 Mile +9

From $25 Open Closing Soon

50 States Half Marathon Club General Membership

Fri, Feb 10 · Colorado Springs, CO Colorado Springs

Road 50 States Half Marathon Club General Membership

From $85 Open

Fifty States Half Marathon Club Life Membership

Sat, Feb 11 · Colorado Springs, CO Colorado Springs

Road Fifty States Half Marathon Club Life Membership

From $429 Open