Upcoming Half Marathons within 50 miles of Windsor, CO on Weekends

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All Colorado
Name Open Date Close Date
With Virtual Option
1. All-Out Summer Breeze
2. Estes Park Marathon
3. Red, White and Brew 5K, 10K & Half Marathon
4. All-Out Dog Days
5. All-Out Runapalooza
6. Boulder Rez Marathon
7. Rocky Mountain Half Marathon
8. Choice City Running Festival - Mountain Avenue Mile & Human Race
9. Hometown Half Marathon
10. Erie Half & 5K
11. Westminster Trail Race
12. Calarat Challenge Trail Running Festival
13. Black Squirrel Half Marathon
14. All-Out Fall Fest
15. Great Bison Shuffle
16. Fall Equinox Marathon
17. Red Feather Trail Jamboree
18. Louisville Trail Race
19. Prairie Dog Half and 10K/5K
20. Boulderthon: Downtown Boulder Marathon

For the love of all that Is good And moisture wicking...

Though we Try To be accurate And On top Of things... Race details can change When we aren't lookin. And once in a while we simply make a mistake.

ALWAYS visit the race's website for the most complete and accurate race information.