Upcoming Races in Douglas County, CO
Parker, CO
Cattle Crossing 5K
Jun 15, 2024
Kids' TRY-athlon
Jul 13, 2024
Labor Day Half Marathon
Sep 2, 2024
So Long to Summer 5K
Sep 21, 2024
Parker Parks and Recreation Turkey Day 5K
Nov 28, 2024
Castle Rock, CO
Eggstravaganza Challenge 5K
Mar 30, 2024
Rock Hawk Trail Races
Apr 27, 2024
Memorial Day Run & March
May 18, 2024
Climb 4 Change
Jun 8, 2024
July 4th ROCK-IT Run
Jul 4, 2024
Prairie Dog Half and 10K - Castle Rock
Jul 20, 2024
Tri the Rock
Sep 8, 2024
Castle Rock Trail Festival
Oct 5, 2024
Turkey ROCK Trot
Nov 28, 2024
Highlands Ranch, CO
HRCA St. Patrick's Day 5K
Mar 23, 2024
HRCA Mother's Day 5K
May 11, 2024
Mountain Ridge Trail Race
Jun 1, 2024
Chase the Moon 12-Hour Endurance Run
Jul 19, 2024
Half K For Hope
Jul 27, 2024
Unicorn 5K South
Aug 3, 2024
HRCA Backcountry Wilderness Half Marathon
Nov 2, 2024
Highlands Ranch 5K/10K
Feb 23, 2025
Lone Tree, CO
Freedom 4 Miler
Jun 29, 2024
Larkspur, CO
Greenland Trail Races
May 4, 2024
Sedalia, CO
Indian Creek Trail Runs
Oct 12, 2024
Deckers, CO
Battle by the Brook
Sep 21, 2024
Sat | Sun | Mon | Tue | Wed | Thu | Fri | Multiple |
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.
1. HRCA St. Patrick's Day 5K
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Mar 23, 2024Saturday
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5K run
More Information
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Highlands Ranch, CO
Douglas County, CO
2. Eggstravaganza Challenge 5K
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Mar 30, 2024Saturday
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5K run
More Information
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Castle Rock, CO
Douglas County, CO
3. Rock Hawk Trail Races
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Apr 27, 2024Saturday
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13.1M, 10K, 5K trail run
More Information
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Castle Rock, CO
Douglas County, CO
4. Greenland Trail Races
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May 4, 2024Saturday
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50K, 25K, 8M, 4M trail run
More Information
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Larkspur, CO
Douglas County, CO
5. HRCA Mother's Day 5K
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May 11, 2024Saturday
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5K run
More Information
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Highlands Ranch, CO
Douglas County, CO
6. 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
7. Mountain Ridge Trail Race
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Jun 1, 2024Saturday
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22M, 13.1M, 10K trail run
More Information
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Highlands Ranch, CO
Douglas County, CO
8. 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
9. Cattle Crossing 5K
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Jun 15, 2024Saturday
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5K run | kids run
More Information
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Parker, CO
Douglas County, CO
10. 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
11. 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
12. Kids' TRY-athlon
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Jul 13, 2024Saturday
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youth triathlon
More Information
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Parker, CO
Douglas County, CO
13. Chase the Moon 12-Hour Endurance Run
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Jul 19, 2024Friday
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12H trail run | 12H relay
More Information
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Highlands Ranch, CO
Douglas County, CO
14. Prairie Dog Half and 10K - Castle Rock
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Jul 20, 2024Saturday
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13.1M, 10K, 5K run
More Information
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Castle Rock, CO
Douglas County, CO
15. 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
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
More Information
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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
More Information
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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
More Information
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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.