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Half Marathons Found In Colorado

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Half Marathons in Colorado 2024 - 2025

The most comprehensive list of Half Marathons in and near Colorado in 2024 - 2025. Find your perfect race!

Ready to take on a new challenge? If you're in Colorado and seeking half marathon races in neighboring states, look no further. Discover our calendars of:

Find your next great goal to chase at findarace, and choose from an extensive list of runs, swims, and cycles all over the US.

Race Calendar: Half Marathons Found In Colorado

Basalt Half Marathon

01 Jun 24

Colorado 13er (Half Marathon/10K/5K)

Louisville, Colorado
02 Jun 24

Steamboat Springs Marathon/Half Marathon/10K

Steamboat Springs, Colorado
02 Jun 24

All-Out Summer Breeze

Arvada, Colorado
08 Jun 24

Steamworks Half Marathon

Durango, Colorado
08 Jun 24

Slacker Half Marathon-Relay-4-Mile Races

Georgetown, Colorado
22 Jun 24

Red, White and Brew 5K, 10K & Half Marathon

Windsor, Colorado
22 Jun 24

Longmont Half & 5K (LM Half)

Longmont, Colorado
04 Jul 24

All-Out Dog Days

Westminster, Colorado
13 Jul 24

Aspen Valley Marathon

Aspen, Colorado
13 Jul 24

Summer Splash Prairie Dog Half, 10K, & 5K

Castle Rock, Colorado
20 Jul 24

Rocky Mountain Half Marathon & 5K

Estes Park, Colorado
02 Aug 24 - 03 Aug 24

All-Out Runapalooza

Arvada, Colorado
03 Aug 24

Sheep Mountain Trail Runs

Fairplay, Colorado
03 Aug 24

Choice City Running Festival

Fort Collins, Colorado
09 Aug 24 - 10 Aug 24

Hometown Half Marathon & 5K/10K - Colorado Springs

Colorado Springs, Colorado
10 Aug 24

Hometown Half Marathon & 5K/10K - Denver

Westminister, Colorado
11 Aug 24

Erie Half & 5K

Erie, Colorado
18 Aug 24

Hometown Half Marathon & 5K/10K - Colorado Springs

Colorado Springs, Colorado
24 Aug 24

Byers Peak Stampede

Winter Park, Colorado
24 Aug 24
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