April Races within 50 miles of Louisville, CO on Saturdays
Denver, CO
Barkin Dog Duathlon
Apr 22, 2023
Colorado Brewery Running Series
Apr 6, 2024
Colorado Brewery Running Series
Apr 13, 2024
Fight for Air Climb
Apr 27, 2024
Aurora, CO
Aurora Polar Plunge and 5K
Apr 6, 2024
Golden, CO
SOAR 5K
Apr 27, 2024
Castle Rock, CO
Rock Hawk Trail Races
Apr 27, 2024
Loveland, CO
Run the Ranch
Apr 5, 2024
Apr 6, 2024
Earth Day 5K/10K
Apr 20, 2024
NOCO Half Marathon & 10K
Apr 27, 2024
Littleton, CO
Shield Our Schools 5K
Apr 20, 2024
Boulder, CO
South Boulder Creek parkrun
Mar 23, 2024
Mar 30, 2024
Apr 6, 2024
Apr 13, 2024
48 more
Boulder Rez Half
Apr 13, 2024
The Diabetes Link at CU 5K Run/Walk
Apr 13, 2024
Brighton, CO
Raptor Run
Apr 6, 2024
Five Star Fun Run and 5K
Apr 20, 2024
Runs With Scissors Races
Apr 27, 2024
Fort Collins, CO
Healthy Kids Running Series
Apr 27, 2024
May 4, 2024
May 18, 2024
Apr 20, 2024
1 more
Severance, CO
Great Western Trail Race
Apr 20, 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. Aurora Polar Plunge and 5K
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Apr 6, 2024Saturday
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5K run
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Aurora, CO
23 miles point to pointArapahoe County, CO
2. Colorado Brewery Running Series
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Apr 6, 2024Saturday
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5K run
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Denver, CO
18 miles point to pointDenver County, CO
3. Raptor Run
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Apr 6, 2024Saturday
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5K run
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Brighton, CO
17 miles point to pointAdams County, CO
4. Run the Ranch
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Apr 6, 2024Saturday
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12H, 6H, 4H trail run | 12H relay
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Loveland, CO
29 miles point to pointLarimer County, CO
5. South Boulder Creek parkrun
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Apr 6, 2024Saturday
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5K run
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Boulder, CO
8 miles point to pointBoulder County, CO
6. All-Out Beat the Heat
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Apr 13, 2024Saturday
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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
11 miles point to pointAdams County, COJefferson County, CO
7. Boulder Rez Half
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Apr 13, 2024Saturday
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13.1M, 10K, 5K run
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Boulder, CO
8 miles point to pointBoulder County, CO
8. Colorado Brewery Running Series
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Apr 13, 2024Saturday
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5K run
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Denver, CO
18 miles point to pointDenver County, CO
9. South Boulder Creek parkrun
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Apr 13, 2024Saturday
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5K run
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Boulder, CO
8 miles point to pointBoulder County, CO
10. The Diabetes Link at CU 5K Run/Walk
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Apr 13, 2024Saturday
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5K run
More Information
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Boulder, CO
8 miles point to pointBoulder County, CO
11. Earth Day 5K/10K
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Apr 20, 2024Saturday
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10K, 5K run | kids run
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Loveland, CO
29 miles point to pointLarimer County, CO
12. Five Star Fun Run and 5K
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Apr 20, 2024Saturday
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5K, 1M run
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Brighton, CO
17 miles point to pointAdams County, CO
13. Great Western Trail Race
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Apr 20, 2024Saturday
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13.1M, 10K, 5K run | kids run
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Severance, CO
41 miles point to pointWeld County, CO
14. Healthy Kids Running Series - Fort Collins
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Apr 20, 2024Saturday
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kids run
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Fort Collins, CO
42 miles point to pointLarimer County, CO
15. Shield Our Schools 5K
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Apr 20, 2024Saturday
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5K run
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Littleton, CO
26 miles point to pointArapahoe County, CO
16. South Boulder Creek parkrun
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Apr 20, 2024Saturday
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5K run
More Information
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Boulder, CO
8 miles point to pointBoulder County, CO
17. Time Travel Half Marathon
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Apr 20, 2024Saturday
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13.1M, 10K, 5K run
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Westminster, CO
11 miles point to pointAdams County, COJefferson County, CO
18. Barkin Dog Duathlon
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Past DateApr 22, 2023Saturday
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sprint, supersprint duathlon
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Denver, CO
18 miles point to pointDenver County, CO
19. Fight for Air Climb - Denver
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Apr 27, 2024Saturday
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stair climb
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Denver, CO
18 miles point to pointDenver County, CO
20. Healthy Kids Running Series - Fort Collins
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Apr 27, 2024Saturday
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kids run
More Information
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Fort Collins, CO
42 miles point to pointLarimer 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.