Upcoming Races in Colorado

Clear your browsing data in order to view the new map.
Saturday Sunday Monday Tuesday Wednesday Thursday Friday Multiple
Sat Sun Mon Tue Wed Thu Fri Multiple
Hide Map
Specify Date Range
Start Date
End Date

Event Category

Click Here to find out what Classic, Multisport, and Variety mean.

To narrow your search by a distance or event type, you will need to select Classic, Multisport, or Variety first.

1. CSU International Run for Relief 5K
2. South Boulder Creek parkrun
3. Women2Women 5K
4. Central Park 5K
5. RMRR Spring Marathon Training Series
6. Spring Equinox Half Marathon
7. Run the Ranch
8. Aspen parkrun
9. Aurora Polar Plunge and 5K
10. Founder's Day 5K Color Fun Run
11. Healthy Kids Running Series - Fort Collins
12. Longmont CollaBEERation 5K
13. Nielson Two Mile Challenge
14. Run the Ranch
15. South Boulder Creek parkrun
16. Three Creeks Half Marathon
17. Boulder Voices For Children Superhero 5K
18. Donut Dash 5K
19. Platte River Half Marathon
20. RMRR Trophy Series - April

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.