Upcoming Races in Douglas County, CO
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
1. Rock Hawk Trail Races
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Apr 27, 2024Saturday
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13.1M, 10K, 5K trail run
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Castle Rock, CO
Douglas County, CO
2. Greenland Trail Races
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May 4, 2024Saturday
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50K, 25K, 8M, 4M trail run
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Larkspur, CO
Douglas County, CO
3. HRCA Mother's Day 5K
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May 11, 2024Saturday
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5K run
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Highlands Ranch, CO
Douglas County, CO
4. Memorial Day Run & March
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May 18, 2024Saturday
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30K, 10K, 5K run
Virtual OptionMore Information
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Castle Rock, CO
Douglas County, CO
5. Mountain Ridge Trail Race
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Jun 1, 2024Saturday
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22M, 13.1M, 10K trail run
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Highlands Ranch, CO
Douglas County, CO
6. Climb 4 Change
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Jun 8, 2024Saturday
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stair climb
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Castle Rock, CO
Douglas County, CO
7. Cattle Crossing 5K
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Jun 15, 2024Saturday
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5K run | kids run
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Parker, CO
Douglas County, CO
8. Freedom 4 Miler
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Jun 29, 2024Saturday
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4M, 1M run
Virtual OptionMore Information
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Lone Tree, CO
Douglas County, CO
9. July 4th ROCK-IT Run
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Jul 4, 2024Thursday
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13.1M, 5K run | 13.1M relay | kids run
Virtual OptionMore Information
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Castle Rock, CO
Douglas County, CO
10. Kids' TRY-athlon
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Jul 13, 2024Saturday
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youth triathlon
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Parker, CO
Douglas County, CO
11. Chase the Moon 12-Hour Endurance Run
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Jul 19, 2024Friday
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12H trail run | 12H relay
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Highlands Ranch, CO
Douglas County, CO
12. Prairie Dog Half and 10K - Castle Rock
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Jul 20, 2024Saturday
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13.1M, 10K, 5K run
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Castle Rock, CO
Douglas County, CO
13. Half K For Hope
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Jul 27, 2024Saturday
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0.5K novelty run
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Highlands Ranch, CO
Douglas County, CO
14. South Suburban Youth & Adult Beginner TRYathlon
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Jul 27, 2024Saturday
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triathlon | youth triathlon
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Lone Tree, CO
Douglas County, CO
15. Reece's Roundup
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Aug 3, 2024Saturday
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10K, 5K run
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Castle Rock, CO
Douglas County, CO
16. Unicorn 5K South
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Aug 3, 2024Saturday
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5K run
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Highlands Ranch, CO
Douglas County, CO
17. Labor Day Half Marathon
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Sep 2, 2024Monday
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13.1M, 10K, 5K run
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Parker, CO
Douglas County, CO
18. Tri the Rock
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Sep 8, 2024Sunday
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youth triathlon
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Castle Rock, CO
Douglas County, CO
19. Battle by the Brook
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Sep 21, 2024Saturday
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6H adventure race
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Deckers, CO
Douglas County, CO
20. So Long to Summer 5K
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Sep 21, 2024Saturday
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5K run
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Parker, CO
Douglas 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.