Upcoming Half Marathons within 50 miles of Denver, CO

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All Colorado
Name Open Date Close Date
With Virtual Option
1. Carbon Valley Half Marathon
2. Denver Colfax Marathon
3. Latino Ultra Nature Adventure
4. REVEL Rockies
5. Colorado 13er
6. All-Out Summer Breeze
7. Colorado Brewery Running Series
8. Slacker Half Marathon
9. July 4th ROCK-IT Run
10. Longmont Half & 5k
11. All-Out Dog Days
12. Prairie Dog Half and 10K - Castle Rock
13. All-Out Runapalooza
14. Boulder Rez Marathon
15. Georgetown to Idaho Springs Half Marathon
16. Hometown Half Marathon
17. Erie Half & 5K
18. Labor Day Half Marathon
19. Sloan's Lake Search Party (SLSP)! Marathon Hourly Loop Race
20. All-Out Fall Fest

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.