Half Marathon Races in Colorado

Leadville Boomdays International Pack Burro Race

Sun, Aug 9 · Leadville, CO Leadville

Road SHORT COURSE: Leadville Boomdays International Pack Burro RaceLONG COURSE: Leadville Boomdays International Pack Burro Race

From $65 Open

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RMRR Fall Marathon Training Series

Sun, Aug 30 · Thornton, CO Thornton

Road RMRR Fall Marathon Training Series #1 - 10 MileRMRR Fall Marathon Training - 3 race bundle Short (10m, 20k, 10m)RMRR Fall 2023 Marathon Training Series #1 - 20 Mile +1

From $20 Open

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RMRR Fall Marathon Training Series #2

Sun, Sep 13 · Thornton, CO Thornton

Road RMRR Fall Marathon Training Series #2 - 20kmRMRR Fall Marathon Training Series #2 - 30km

From $20 Open

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Battle by the Brook

Sat, Sep 19 · Deckers, CO Deckers

Family RaceCompetitive Race

From $89 Open 75 spots left

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CG Adventure Club - Elevation Everest

Wed, Sep 23 · Winter Park, CO Winter Park

All-In Adventure PackageBasic Experience PackageStarter Adventure Package

From $150 Open

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RMRR Fall Marathon Training Series #3

Sun, Sep 27 · Thornton, CO Thornton

Road RMRR Fall Marathon Training Series #3 - 10 MileRMRR Fall Marathon Training Series #3 - 20 Mile

From $20 Open

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Chasing Santa 5k/Cycling Santa Toy Drive Presented by: Springs Law Group

Sat, Dec 5 · Colorado Springs, CO Colorado Springs

Road Adult Chasing Santa 5kToddlers Chasing SantaChasing Santa 5k KIDS 15 yrs and under +5

From $0 Open

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Race in the Clouds - Alma Dirt Festival 2027

Thu, Jun 24 · Alma, CO Alma

Trail Highschool/Middle School Short Course (6.1miles)Highschool/Middle School Short Course (6.1miles)Trail 10K +19

From $0 Open 10 spots left

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