May Races in Colorado
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.
To narrow your search by a distance or event type, you will need to select Classic, Multisport, or Variety first.
City Location
21. South Boulder Creek parkrun
-
May 4, 2024Saturday
-
5K run
More Information
-
Boulder, CO
Boulder County, CO
22. Take 5 in the Garden
-
May 4, 2024Saturday
-
5M, 5K run | 9.5M, 5M trail run
More Information
-
Colorado Springs, CO
El Paso County, CO
23. Altitude Elementary Moose Mudder
-
May 5, 2024Sunday
-
5K, 1K run
More Information
-
Aurora, CO
Arapahoe County, CO
24. Colorado Brewery Running Series
-
May 5, 2024Sunday
-
5K run
More Information
-
Denver, CO
Denver County, CO
25. Colorado Marathon
-
May 5, 2024Sunday
-
26.2M, 13.1M, 10K, 5K run | 26.2M relay
More Information
-
Boston Marathon Qualifier
-
Fort Collins, CO
Larimer County, CO
26. Healthy Kids Running Series
-
May 5, 2024Sunday
-
kids run
More Information
-
Trinidad, CO
Las Animas County, CO
27. Healthy Kids Running Series - Denver
-
May 5, 2024Sunday
-
kids run
More Information
-
Denver, CO
Denver County, CO
28. Healthy Kids Running Series - Aurora
-
May 5, 2024Sunday
-
kids run
More Information
-
Aurora, CO
Arapahoe County, CO
29. RMRR Trophy Series - May
-
May 5, 2024Sunday
-
5M, 5K run
More Information
-
Denver, CO
Denver County, CO
30. Dash & Dine 5K Series
-
May 7, 2024Tuesday
-
5K run
More Information
-
Boulder, CO
Boulder County, CO
31. Aspen parkrun
-
May 11, 2024Saturday
-
5K run
More Information
-
Aspen, CO
Pitkin County, CO
32. Carbon Valley Half Marathon
-
May 11, 2024Saturday
-
13.1M, 5K, 1M run | 13.1M relay | kids run
More Information
-
Firestone, CO
Weld County, CO
33. CMRA Tucker Lake 6.5 Mile
-
May 11, 2024Saturday
-
6.5M run
More Information
-
Arvada, CO
Jefferson County, CO
34. Colorado Brewery Running Series
-
May 11, 2024Saturday
-
5K run
More Information
-
Northglenn, CO
Adams County, CO
35. Colorado Friends of First Responders Annual Run
-
May 11, 2024Saturday
-
10K, 5K run
More Information
-
Littleton, CO
Arapahoe County, CO
36. Colorado Friends of First Responders
-
May 11, 2024Saturday
-
10K, 5K run | kids run
More Information
-
Littleton, CO
Arapahoe County, CO
37. Endura Mamas 5K and Family Fun Run
-
May 11, 2024Saturday
-
5K run
More Information
-
Buena Vista, CO
Chaffee County, CO
38. Girls on the Run 5K
-
May 11, 2024Saturday
-
5K run
More Information
-
Longmont, CO
Boulder County, CO
39. Girls on the Run 5K
-
May 11, 2024Saturday
-
5K run
More Information
-
Colorado Springs, CO
El Paso County, CO
40. Head and Neck Cancer A Hard Thing to Swallow 5K/10K
-
May 11, 2024Saturday
-
10K, 5K run
Virtual OptionMore Information
-
Colorado Springs, CO
El Paso County, CO
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.
ALWAYS visit the race's website for the most complete and accurate race information.