October Races in Colorado

Show 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. Lakewood Trail Series
2. AppleFest 5K
3. Aspen parkrun
4. Castle Rock Trail Festival
5. Castlewood Canyon Fun Run
6. Colorado Brewery Running Series - Prost Brewing
7. Crested Butte Ultra
8. Emerald Mountain Trail Run
9. Glenwood Canyon Shuffle
10. High Drive Challenge
11. Just for J Superhero 5K
12. Louisville Trail Race
13. Nielson Two Mile Challenge
14. Rim To Rim Royal Gorge Race Weekend
15. Runway 5K Run for the Angels
16. Rut Run 5K
17. Second Wind Walk/Run
18. South Boulder Creek parkrun
19. Spanish Peaks Downhill Half Marathon and 5K Fun Run
20. Spanish Peaks Downhill Half 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.