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Marathon Races in Colorado

18 upcoming Marathon races across Colorado. Run This events are listed first — pick a city below to narrow it down.

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Cities in ColoradoFort CollinsColorado Springs

18 races

Thu, Aug 6, 2026

Choice City Running Festival

Fort Collins, CO

Outside1 mileMarathon10K5K

Fri, Aug 21, 2026

Staunton Rocks! Marathon and Half Marathon

Pine, CO

OutsideMarathon

Mon, Aug 31, 2026

RiseUP Elevation Challenge

Colorado Springs, CO

Outside26.0 mi

Fri, Sep 11, 2026

Steele Trap Trail Run

Loma, CO

OutsideMarathon

Sat, Sep 19, 2026

Pikes Peak Marathon

Manitou Springs, CO

OutsideMarathon

Fri, Oct 2, 2026

Colorado Springs Marathon, Half, 5K, and Kids K

Colorado Springs, CO

OutsideMarathon5K1000 m

Sat, Oct 3, 2026

Windsor Marathon, Half Marathon, 10k, 5k & 1 Mile Run

Windsor, CO

OutsideMarathon10K5K1 mile

Fri, Oct 9, 2026

Breckenridge RunFest

Breckenridge, CO

OutsideMarathon10K5K1 mile

Fri, Oct 9, 2026

The Long View Marathon

Fort Collins, CO

OutsideMarathon5K

Sat, Oct 10, 2026

Durango Marathon

Durango, CO

OutsideMarathon

Fri, Oct 16, 2026

Blue Sky Trail Marathon & Half Marathon

Fort Collins, CO

Outside26.7 mi13.8 mi

Fri, Oct 30, 2026

Spooky Sprint - Colorado Springs

Colorado Springs, CO

Outside1 mile5K10KMarathon

Fri, Jan 29, 2027

Alley Loop

Crested Butte, CO

OutsideMarathon10K5K1.9 mi

Fri, Mar 12, 2027

22nd Annual Run Through Time Trail Marathon and Half Marathon

Salida, CO

OutsideMarathon2.0 mi

Sat, May 1, 2027

The Colorado Marathon

Fort Collins, CO

OutsideMarathon10K5K

Fri, May 14, 2027

Endure Trail Runs

Divide, CO

Outside6.8 mi14.1 mi26.5 mi

Fri, Jun 4, 2027

Weld Your Mettle Running Festival

Eaton, CO

Outside50.0 mi62.1 mi4.3 mi14.0 mi

Wed, Jun 23, 2027

Race in the Clouds - Alma Dirt Festival 2027

Alma, CO

Outside38.0 mi26.0 miMarathon22.0 mi

Marathon races by city in Colorado

Fort Collins4Colorado Springs3