April Races within 50 miles of Fort Collins, CO on Sundays
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. Horsetooth Half Marathon
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Apr 13, 2025Sunday
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13.1M run
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Fort Collins, CO
Larimer County, CO
2. Boulder Track Series Meet 1
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Past DateApr 14, 2024Sunday
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track meet
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Longmont, CO
29 miles point to pointBoulder County, CO
3. 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
44 miles point to pointAdams County, CO
4. NOCO Half Marathon & 10K
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Apr 27, 2025Sunday
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13.1M, 10K run
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Loveland, CO
13 miles point to pointLarimer County, CO
5. Boulder Track Series Meet 2
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Past DateApr 28, 2024Sunday
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track meet
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Longmont, CO
29 miles point to pointBoulder County, CO
6. Flying Pig 5K
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Past DateApr 28, 2024Sunday
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5K run | kids run
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Fort Collins, CO
Larimer County, CO
7. RMRR Spring Marathon Training Series
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Past DateApr 28, 2024Sunday
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20M, 10M run
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Thornton, CO
50 miles point to pointAdams 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.