Hey Runners! We are working long hours to update races that are cancelled, TBD, postponed, and/or converted to virtual due to COVID-19.

We are making progress every day. Thanks for your patience.

October Races within 50 miles of Windsor, CO

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. Louisville Trail Race
2. Runway 5K Run for the Angels
3. Rut Run 5K
4. South Boulder Creek parkrun
5. Boulder Beer Chase
6. Its Fall Yall 5K and K9 Canter 1M Fun Run
7. Long View Marathon
8. Long View Marathon
9. CSU Homecoming 5K
10. Pete and Paul 5K
11. Pre Dress-Up Dash
12. Colorado Brewery Running Series - New Belgium Brewing
13. South Boulder Creek parkrun
14. Boulderthon: Downtown Boulder Marathon & Half Marathon
15. Windsor Half Marathon
16. Friend Day 5K
17. Broomfield Trails Marathon
18. Blue Sky Trail Marathon
19. Harvest Night
20. Run Fur Fun 5K

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.