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

View details for race Colorado Springs Marathon, Half, 5K, and Kids K

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

Louisville, CO

Sunday, October 5th, 2025

Half

View details for race Layafette Music Fest Half-Marathon/10K/5K

Windsor Marathon, Half Marathon, 10k, 5k & 1 Mi...

Windsor, CO

Sunday, October 5th, 2025

Marathon

Half

10K

Trail

View details for race Windsor Marathon, Half Marathon, 10k, 5k & 1 Mile Run

The Long View Marathon

Fort Collins, CO

Saturday, October 11th, 2025

Half

Marathon

View details for race The Long View Marathon

Westy Half & 5k

Westminster, CO

Sunday, October 12th, 2025

Half

View details for race Westy Half & 5k

Blue Sky Marathon & Half

Fort Collins, CO

Saturday, October 18th, 2025

Half

Marathon

View details for race Blue Sky Marathon & Half

Mancos Cowboy Half Marathon, 5K, and Fun Run

Mancos, CO

Saturday, October 18th, 2025

Half

1 Mile

Trail

Fast

View details for race Mancos Cowboy Half Marathon, 5K, and Fun Run

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