September Classic Races within 50 miles of Greeley, CO
1. Calarat Challenge Trail Running Festival
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Past DateSep 3, 2023Sunday
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13.1M, 10K, 5K trail run | kids run
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Jamestown, CO
42 miles point to pointBoulder County, CO
2. Roost Rebellion Relays
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Sep 4, 2024Wednesday
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4M relay
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Denver, CO
50 miles point to pointDenver County, CO
3. Black Squirrel Half Marathon
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Sep 7, 2024Saturday
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13.1M trail run
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Bellvue, CO
28 miles point to pointLarimer County, CO
4. Blue Shoe Run for Prostate Cancer
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Sep 7, 2024Saturday
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5K run
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Denver, CO
50 miles point to pointDenver County, CO
5. RexRun For PAWSitivity 5K Trail Run/Walk
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Sep 7, 2024Saturday
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5K trail run | kids run
Virtual OptionMore Information
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Aurora, CO
48 miles point to pointArapahoe County, CO
6. Sloan's Lake Search Party (SLSP)! Marathon Hourly Loop Race
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Sep 7, 2024Saturday
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26.2M, 13.1M run
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Denver, CO
50 miles point to pointDenver County, CO
7. South Boulder Creek parkrun
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Sep 7, 2024Saturday
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5K run
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Boulder, CO
41 miles point to pointBoulder County, CO
8. Denver Rocks Run 5K/10K
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Sep 8, 2024Sunday
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10K, 5K run
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Denver, CO
50 miles point to pointDenver County, CO
9. Honey Bee Hustle
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Sep 8, 2024Sunday
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1.5H run
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Loveland, CO
19 miles point to pointLarimer County, CO
10. RMRR Trophy Series - September
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Sep 8, 2024Sunday
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10M, 5K run
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Thornton, CO
41 miles point to pointAdams County, CO
11. Waneka Classic
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Past DateSep 9, 2023Saturday
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5K run
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Lafayette, CO
36 miles point to pointBoulder County, CO
12. 9/11 Heroes Run - Denver
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Past DateSep 10, 2023Sunday
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5K run
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Denver, CO
50 miles point to pointDenver County, CO
13. RMRR Fall Marathon Training Series
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Past DateSep 10, 2023Sunday
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30K, 20K run
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Thornton, CO
41 miles point to pointAdams County, CO
14. All-Out Fall Fest
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Sep 14, 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
44 miles point to pointAdams County, COJefferson County, CO
15. Cheyenne Schools Foundation - Run for 1
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Sep 14, 2024Saturday
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5K run
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Cheyenne, WY
50 miles point to pointLaramie County, WY
16. Colorado Brewery Running Series
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Sep 14, 2024Saturday
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5K run
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Denver, CO
50 miles point to pointDenver County, CO
17. Denver 5K
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Sep 14, 2024Saturday
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5K run
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Denver, CO
50 miles point to pointDenver County, CO
18. Jag Jog 5K
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Sep 14, 2024Saturday
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5K, 1M run
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Broomfield, CO
40 miles point to pointBroomfield County, CO
19. South Boulder Creek parkrun
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Sep 14, 2024Saturday
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5K run
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Boulder, CO
41 miles point to pointBoulder County, CO
20. Colorado Brewery Running Series
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Sep 15, 2024Sunday
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5K run
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Longmont, CO
27 miles point to pointBoulder 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.