The Most Popular Races in Colorado

Red, White, and WARRIOR 5K

Grand Junction, CO · Jul 3, 2027

Cookie Chase

Denver, CO · Jul 10, 2027

Choice City Running Festival

Fort Collins, CO · Aug 7, 2026

Autumn Run

Buena Vista, CO · Sep 19, 2026

All-Out Dog Days

Westminster, CO · Jul 10, 2027

Erie Half & 5k

Erie, CO · Aug 16, 2026

All-Out Summer Breeze

Arvada, CO · Jun 12, 2027

Summer Splash Prairie Dog Half, 10k, & 5k

Castle Rock, CO · Jul 17, 2027

Flamingo Day 5K

Denver, CO · Jun 6, 2027

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

Louisville, CO · Jun 6, 2027

Pancake Stampede 5K

Littleton, CO · Aug 9, 2026

Mountain Marmot Trail Run presented by Durango Running Company

Durango, CO · Sep 26, 2026

The Cheyenne Mountain Run

Colorado Springs, CO · Aug 15, 2026

The Denver 5k

Denver, CO · Sep 12, 2026

Severance Glow 5K Run or Walk

Severance, CO · Sep 18, 2026

Popsicle 5K/10K/Half - Colorado Springs

Colorado Springs, CO · Aug 1, 2026

Summer Sizzler- Denver

Denver, CO · Aug 8, 2026

Pioneer Prairie Dog Half, 10k & 5k

Westminster, CO · Aug 23, 2026

All-Out Fall Fest

Westminster, CO · Sep 19, 2026

All Hands on Deck The Pirates 5K

Colorado Springs, CO · Sep 19, 2026

Dialysis Dash 5K

Grand Junction, CO · Oct 10, 2026

Summer Sizzler- Colorado Springs

Colorado Springs, CO · Aug 9, 2026