Half Marathons within 50 miles of Louisville, CO

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All Colorado
Name Open Date Close Date
With Virtual Option
1. Calarat Challenge Trail Running Festival
2. Ned Ned Run
3. Adams Half & 5K
4. Ralston Creek Half Marathon
5. That Dam Run
6. Time to Paddy 5K/10K and Lucky 13.1
7. Spring Equinox Races
8. Three Creeks Half Marathon
9. Boulder Rez Half
10. Platte River Half Marathon
11. Great Western Trail Race
12. Time Travel Half Marathon
13. Blue Heron Half and 5K
14. NOCO Half Marathon & 10K
15. Rock Hawk Trail Races
16. Runs With Scissors Races
17. Colorado Marathon
18. Carbon Valley Half Marathon
19. Boulder Mothers Day Run
20. Denver Colfax 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.