April 5Ks in Colorado
Longmont, CO
Colorado Brewery Running Series
Apr 21, 2024
Denver, CO
Unicorn 5K
Apr 21, 2024
Donut Dash 5K
Apr 6, 2025
Colorado Springs, CO
Time Travel Half Marathon
Apr 21, 2024
Alpine Autism Center Run for the One 5K
Apr 27, 2024
Aurora, CO
Aurora Polar Plunge and 5K
Apr 6, 2024
Durango, CO
Southwest CO FCA 5K
Apr 20, 2024
Grand Junction, CO
Mav Days 5K Run/Walk
Apr 6, 2024
Elevate Kids Fun Run
Apr 6, 2025
Castle Rock, CO
Rock Hawk Trail Races
Apr 27, 2024
Littleton, CO
Rockin' on the River 5K
Apr 21, 2024
Arvada, CO
Spring Fling Prairie Dog Half
Apr 13, 2025
Boulder, CO
Boulder Rez Half
Apr 13, 2024
South Boulder Creek parkrun
Mar 22, 2025
Mar 29, 2025
Apr 5, 2025
Apr 13, 2024
48 more
The Diabetes Link at CU 5K Run/Walk
Apr 13, 2024
Dash & Dine 5K Series
Apr 30, 2024
May 7, 2024
May 14, 2024
May 21, 2024
Brighton, CO
Raptor Run
Apr 6, 2024
Five Star Fun Run and 5K
Apr 20, 2024
Blue Heron Half and 5K
Apr 21, 2024
Trinidad, CO
Huff and Puff 5K
Apr 20, 2024
Canon City, CO
Royal Gorge Groove
Apr 20, 2024
Walk for Life/5K
Apr 20, 2024
Fountain, CO
Woody's Tortoise and Hare
Apr 20, 2024
Rifle, CO
Strut for Mutts
Apr 20, 2024
Pueblo West, CO
Baylon Michael Meyer 5K/10K Memorial Run
Apr 6, 2024
Fort Collins, CO
Flying Pig 5K
Apr 28, 2024
Severance, CO
Great Western Trail Race
Apr 20, 2024
Sat | Sun | Mon | Tue | Wed | Thu | Fri | Multiple |
1. Aspen parkrun
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Apr 5, 2025Saturday
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5K run
More Information
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Aspen, CO
Pitkin County, CO
2. Run the Ranch
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Past DateApr 5, 2024Friday
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10K, 5K trail run
More Information
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Loveland, CO
Larimer County, CO
3. South Boulder Creek parkrun
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Apr 5, 2025Saturday
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5K run
More Information
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Boulder, CO
Boulder County, CO
4. Aurora Polar Plunge and 5K
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Past DateApr 6, 2024Saturday
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5K run
More Information
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Aurora, CO
Arapahoe County, CO
5. Baylon Michael Meyer 5K/10K Memorial Run
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Past DateApr 6, 2024Saturday
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10K, 5K run
Virtual OptionMore Information
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Pueblo West, CO
Pueblo County, CO
6. Donut Dash 5K
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Apr 6, 2025Sunday
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5K run
More Information
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Denver, CO
Denver County, CO
7. Elevate Kids Fun Run
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Apr 6, 2025Sunday
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10K, 5K, 2.5K run
More Information
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Grand Junction, CO
Mesa County, CO
8. Mav Days 5K Run/Walk
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Past DateApr 6, 2024Saturday
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5K run | kids run
More Information
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Grand Junction, CO
Mesa County, CO
9. Raptor Run
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Past DateApr 6, 2024Saturday
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5K run
More Information
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Brighton, CO
Adams County, CO
10. Aspen parkrun
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Past DateApr 13, 2024Saturday
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5K run
More Information
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Aspen, CO
Pitkin County, CO
11. Boulder Rez Half
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Past DateApr 13, 2024Saturday
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13.1M, 10K, 5K run
More Information
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Boulder, CO
Boulder County, CO
12. South Boulder Creek parkrun
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Past DateApr 13, 2024Saturday
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5K run
More Information
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Boulder, CO
Boulder County, CO
13. Spring Fling Prairie Dog Half
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Apr 13, 2025Sunday
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13.1M, 10K, 5K run | kids run
More Information
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Arvada, CO
Jefferson County, CO
14. The Diabetes Link at CU 5K Run/Walk
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Past DateApr 13, 2024Saturday
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5K run
More Information
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Boulder, CO
Boulder County, CO
15. 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
Adams County, COJefferson County, CO
16. Aspen parkrun
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Past DateApr 20, 2024Saturday
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5K run
More Information
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Aspen, CO
Pitkin County, CO
17. Earth Day 5K/10K
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Past DateApr 20, 2024Saturday
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10K, 5K run | kids run
More Information
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Loveland, CO
Larimer County, CO
18. Five Star Fun Run and 5K
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Past DateApr 20, 2024Saturday
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5K, 1M run
More Information
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Brighton, CO
Adams County, CO
19. Great Western Trail Race
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Past DateApr 20, 2024Saturday
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13.1M, 10K, 5K run | kids run
More Information
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Severance, CO
Weld County, CO
20. Huff and Puff 5K
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Past DateApr 20, 2024Saturday
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5K run
More Information
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Trinidad, CO
Las Animas 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.