April 5Ks within 50 miles of Brighton, CO
1. Run the Ranch
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Past DateApr 5, 2024Friday
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10K, 5K trail run
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Loveland, CO
31 miles point to pointLarimer County, CO
2. South Boulder Creek parkrun
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Apr 5, 2025Saturday
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5K run
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Boulder, CO
24 miles point to pointBoulder County, CO
3. Aurora Polar Plunge and 5K
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Past DateApr 6, 2024Saturday
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5K run
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Aurora, CO
18 miles point to pointArapahoe County, CO
4. Donut Dash 5K
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Apr 6, 2025Sunday
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5K run
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Denver, CO
19 miles point to pointDenver County, CO
5. Raptor Run
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Past DateApr 6, 2024Saturday
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5K run
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Brighton, CO
Adams County, CO
6. Boulder Rez Half
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Past DateApr 13, 2024Saturday
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13.1M, 10K, 5K run
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Boulder, CO
24 miles point to pointBoulder County, CO
7. South Boulder Creek parkrun
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Past DateApr 13, 2024Saturday
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5K run
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Boulder, CO
24 miles point to pointBoulder County, CO
8. Spring Fling Prairie Dog Half
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Apr 13, 2025Sunday
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13.1M, 10K, 5K run | kids run
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Arvada, CO
19 miles point to pointJefferson County, CO
9. The Diabetes Link at CU 5K Run/Walk
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Past DateApr 13, 2024Saturday
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5K run
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Boulder, CO
24 miles point to pointBoulder County, CO
10. All-Out Beat the Heat
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Apr 19, 2025Saturday
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13.1M, 10K, 5K run
Virtual OptionMore Information
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Boston Marathon Qualifier
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Westminster, CO
16 miles point to pointAdams County, COJefferson County, CO
11. Earth Day 5K/10K
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Past DateApr 20, 2024Saturday
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10K, 5K run | kids run
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Loveland, CO
31 miles point to pointLarimer County, CO
12. Five Star Fun Run and 5K
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Past DateApr 20, 2024Saturday
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5K, 1M run
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Brighton, CO
Adams County, CO
13. Great Western Trail Race
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Past DateApr 20, 2024Saturday
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13.1M, 10K, 5K run | kids run
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Severance, CO
37 miles point to pointWeld County, CO
14. South Boulder Creek parkrun
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Past DateApr 20, 2024Saturday
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5K run
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Boulder, CO
24 miles point to pointBoulder County, CO
15. Time Travel Half Marathon
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Past DateApr 20, 2024Saturday
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13.1M, 10K, 5K run
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Westminster, CO
16 miles point to pointAdams County, COJefferson County, CO
16. Blue Heron Half and 5K
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Past DateApr 21, 2024Sunday
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13.1M, 5K run
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Brighton, CO
Adams County, CO
17. Colorado Brewery Running Series
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Past DateApr 21, 2024Sunday
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5K run
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Longmont, CO
19 miles point to pointBoulder County, CO
18. Rockin' on the River 5K
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Past DateApr 21, 2024Sunday
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5K run
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Littleton, CO
28 miles point to pointArapahoe County, CO
19. Unicorn 5K
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Past DateApr 21, 2024Sunday
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5K, 0.5M run
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Denver, CO
19 miles point to pointDenver County, CO
20. 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
42 miles point to pointDouglas 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.