September Races within 50 miles of Brighton, CO on Sundays
Thornton, CO
RMRR Fall Marathon Training Series
Aug 27, 2023
Sep 24, 2023
Sep 10, 2023
RMRR Trophy Series - September
Sep 8, 2024
Denver, CO
9/11 Heroes Run
Sep 10, 2023
Sentir Venezolano 5K Walk / Run
Sep 17, 2023
Denver Rocks Run 5K/10K
Sep 8, 2024
Nun Run
Sep 15, 2024
Golden, CO
Golden Gallop
Sep 22, 2024
Castle Rock, CO
Tri the Rock
Sep 8, 2024
Highlands Ranch, CO
BackCountry 5K
Sep 17, 2023
Littleton, CO
Lions Roar 5K
Sep 17, 2023
Second Wind Walk/Run
Sep 24, 2023
Flyin' Lion 5K
Sep 15, 2024
Arvada, CO
Run With The Wolves
Sep 17, 2023
Brighton, CO
Adams Half & 5K
Sep 17, 2023
Wheat Ridge, CO
Farmers 5000
Sep 15, 2024
Greenwood Village, CO
Tri-Our-Village Youth Triathlon
Sep 10, 2023
Lakewood, CO
Tiger Prowl
Sep 10, 2023
Bear Chase Race - Half Marathon & 10K
Sep 29, 2024
Sep 28, 2024
Fort Collins, CO
Beef Sticks for Backpacks 5K Run/Walk
Sep 24, 2023
Fall Equinox Marathon
Sep 22, 2024
Jamestown, CO
Calarat Challenge Trail Running Festival
Sep 3, 2023
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. 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
More Information
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Jamestown, CO
32 miles point to pointBoulder County, CO
2. 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
19 miles point to pointDenver County, CO
3. Honey Bee Hustle
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Sep 8, 2024Sunday
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1.5H run
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Loveland, CO
31 miles point to pointLarimer County, CO
4. RMRR Trophy Series - September
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Sep 8, 2024Sunday
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10M, 5K run
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Thornton, CO
12 miles point to pointAdams County, CO
5. Tri the Rock
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Sep 8, 2024Sunday
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youth triathlon
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Castle Rock, CO
42 miles point to pointDouglas County, CO
6. 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
19 miles point to pointDenver County, CO
7. 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
12 miles point to pointAdams County, CO
8. Tiger Prowl
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Past DateSep 10, 2023Sunday
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5K run
More Information
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Lakewood, CO
24 miles point to pointJefferson County, CO
9. Tri-Our-Village Youth Triathlon
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Past DateSep 10, 2023Sunday
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youth triathlon
More Information
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Greenwood Village, CO
26 miles point to pointArapahoe County, CO
10. Colorado Brewery Running Series
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Sep 15, 2024Sunday
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5K run
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Longmont, CO
19 miles point to pointBoulder County, CO
11. Farmers 5000
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Sep 15, 2024Sunday
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5K run
Virtual OptionMore Information
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Wheat Ridge, CO
21 miles point to pointJefferson County, CO
12. Flyin' Lion 5K
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Sep 15, 2024Sunday
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5K run
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Littleton, CO
28 miles point to pointArapahoe County, CO
13. Nun Run
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Sep 15, 2024Sunday
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13.1M, 5K, 1M run
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Denver, CO
19 miles point to pointDenver County, CO
14. Adams Half & 5K
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Past DateSep 17, 2023Sunday
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13.1M, 5K run
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Brighton, CO
Adams County, CO
15. BackCountry 5K
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Past DateSep 17, 2023Sunday
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5K run
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Highlands Ranch, CO
31 miles point to pointDouglas County, CO
16. Lions Roar 5K
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Past DateSep 17, 2023Sunday
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5K run
More Information
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Littleton, CO
28 miles point to pointArapahoe County, CO
17. Run With The Wolves
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Past DateSep 17, 2023Sunday
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5K, 1K run
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Arvada, CO
19 miles point to pointJefferson County, CO
18. Sentir Venezolano 5K Walk / Run
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Past DateSep 17, 2023Sunday
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5K run
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Denver, CO
19 miles point to pointDenver County, CO
19. Fall Equinox Marathon
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Sep 22, 2024Sunday
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26.2M, 13.1M, 5M run
Virtual OptionMore Information
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Boston Marathon Qualifier
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Fort Collins, CO
44 miles point to pointLarimer County, CO
20. Golden Gallop
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Sep 22, 2024Sunday
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10K, 5K run | kids run
More Information
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Golden, CO
27 miles point to pointJefferson 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.