May Races within 400 miles of Castle Rock, 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. Shiprock Marathon
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May 2, 2025Friday
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5K run
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Boston Marathon Qualifier
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Shiprock, NM
270 miles point to pointSan Juan County, NM
2. Aspen parkrun
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May 3, 2025Saturday
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5K run
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Aspen, CO
105 miles point to pointPitkin County, CO
3. Greenland Trail Races
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May 3, 2025Saturday
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50K, 25K, 8M, 4M trail run
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Larkspur, CO
10 miles point to pointDouglas County, CO
4. Happy Trails Marathon
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May 3, 2025Saturday
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26.2M, 13.1M run
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Draper, UT
380 miles point to pointSalt Lake County, UT
5. May the Fourth Race
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May 3, 2025Saturday
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13.1M, 10K, 5K run
Virtual OptionMore Information
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Farmington, UT
389 miles point to pointDavis County, UT
6. Nielson Two Mile Challenge
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May 3, 2025Saturday
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2M trail run
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Colorado Springs, CO
37 miles point to pointEl Paso County, CO
7. Provo City Half Marathon
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May 3, 2025Saturday
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13.1M, 5K run
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Provo, UT
365 miles point to pointUtah County, UT
8. Run with Sandy
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May 3, 2025Saturday
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5K run
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Rock Springs, WY
276 miles point to pointSweetwater County, WY
9. Shiprock Marathon
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May 3, 2025Saturday
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26.2M, 13.1M run
More Information
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Boston Marathon Qualifier
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Shiprock, NM
270 miles point to pointSan Juan County, NM
10. South Boulder Creek parkrun
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May 3, 2025Saturday
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5K run
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Boulder, CO
49 miles point to pointBoulder County, CO
11. Take 5 in the Garden
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May 3, 2025Saturday
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5M, 5K run | 9.5M, 5M trail run
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Colorado Springs, CO
37 miles point to pointEl Paso County, CO
12. Adams County Foster Care 5K
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Past DateMay 4, 2024Saturday
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5K, 1M run
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Brighton, CO
42 miles point to pointAdams County, CO
13. Bash the Bluffs 5K
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Past DateMay 4, 2024Saturday
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5K, 1M run | kids run
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Colorado Springs, CO
37 miles point to pointEl Paso County, CO
14. Bob Turner Classic 5K
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Past DateMay 4, 2024Saturday
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5K run
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Berthoud, CO
65 miles point to pointLarimer County, CO
15. Brain Freeze Fun Walk/Run
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Past DateMay 4, 2024Saturday
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5K, 1M run
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Hays, KS
295 miles point to pointEllis County, KS
16. Cinco de Mayo 5K
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Past DateMay 4, 2024Saturday
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5K run
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Cheyenne, WY
122 miles point to pointLaramie County, WY
17. Collegiate Peaks Trail Run
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Past DateMay 4, 2024Saturday
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50M, 25M trail run
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Buena Vista, CO
77 miles point to pointChaffee County, CO
18. Colorado Marathon
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May 4, 2025Sunday
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26.2M, 13.1M, 10K, 5K run | 26.2M relay
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Boston Marathon Qualifier
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Fort Collins, CO
85 miles point to pointLarimer County, CO
19. Compete to Defeat Brain Tumors 5K
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Past DateMay 4, 2024Saturday
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5K run | kids run
Virtual OptionMore Information
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Elk City, OK
399 miles point to pointBeckham County, OK
20. CPR 5K
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Past DateMay 4, 2024Saturday
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5K run
More Information
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Salt Lake City, UT
385 miles point to pointSalt Lake County, UT
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.
