Upcoming Half Marathon Races In Colorado, US in October, 2025

Name: Mancos Cowboy Half Marathon, 5K, and Fun Run
Start: 2025-10-18
End: 2025-10-18
Location: Mancos

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

Colorado Springs, CO

Saturday, October 4th, 2025

Marathon

Half

Trail

Layafette Music Fest Half-Marathon/10K/5K

Louisville, CO

Sunday, October 5th, 2025

Half

Windsor Marathon, Half Marathon, 10k & 5k

Windsor, CO

Sunday, October 5th, 2025

Marathon

Half

10K

Trail

The Long View Marathon

Fort Collins, CO

Saturday, October 11th, 2025

Half

Marathon

Westy Half & 5k

Westminster, CO

Sunday, October 12th, 2025

Half

Blue Sky Marathon & Half

Fort Collins, CO

Saturday, October 18th, 2025

Half

Marathon

Mancos Cowboy Half Marathon, 5K, and Fun Run

Mancos, CO

Saturday, October 18th, 2025

Half

1 Mile

Trail

Fast

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