Half Marathons within 50 miles of Littleton, CO on Sundays

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All Colorado
Name Open Date Close Date
With Virtual Option
1. Adams Half & 5K
2. Ralston Creek Half Marathon
3. That Dam Run
4. Time to Paddy 5K/10K and Lucky 13.1
5. Three Creeks Half Marathon
6. Platte River Half Marathon
7. Blue Heron Half and 5K
8. Denver Colfax Marathon
9. Colorado 13er
10. Colorado Brewery Running Series
11. Hometown Half Marathon
12. Erie Half & 5K
13. Nun Run
14. Boulderthon: Downtown Boulder Marathon
15. Westy Half & 5K
16. All-Out Kooky-Spooky
17. Arctic Prairie Dog Half - Westminster
18. All-Out Spring Fever
19. Spring Fling Prairie Dog Half

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.