Half Marathon Races in Colorado

Sun, Sep 13 · Thornton, CO Thornton

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

From $20 Open Closing Soon

Sat, Sep 19 · Deckers, CO Deckers

Family RaceCompetitive Race

From $89 Open 75 spots left

Wed, Sep 23 · Winter Park, CO Winter Park

All-In Adventure PackageBasic Experience PackageStarter Adventure Package

From $150 Open

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

Sat, Dec 5 · Colorado Springs, CO Colorado Springs

Road Toddlers Chasing SantaAdult Chasing Santa 5kChasing Santa 5k KIDS 15 yrs and under +5

From $0 Open

Fri, Jun 25 · Alma, CO Alma

Trail Highschool/Middle School Short Course (6.1miles)Highschool/Middle School Short Course (6.1miles)Trail 10K +21

From $0 Open 10 spots left