Races in Adams County, CO on Sundays
Thornton, CO
RMRR Fall Marathon Training Series
Aug 27, 2023
Sep 24, 2023
Sep 10, 2023
RMRR Trophy Series - January
Jan 7, 2024
RMRR Spring Marathon Training Series
Mar 24, 2024
Apr 28, 2024
Head and Neck Cancer A Hard Thing to Swallow 5K/10K
May 12, 2024
Firecracker 4 and 8 Mile
Jun 30, 2024
RMRR Trophy Series - September
Sep 8, 2024
Westminster, CO
Colorado Women's Classic - Westminster
May 12, 2024
Summer Sizzler
Jul 21, 2024
Eye Love Logan and Zoe 5K
Aug 11, 2024
Hometown Half Marathon
Aug 11, 2024
Westy Half & 5K
Oct 13, 2024
Candy Cane Run
Dec 15, 2024
Candy Cane Course
Dec 22, 2024
Brighton, CO
Adams Half & 5K
Sep 17, 2023
Blue Heron Half and 5K
Apr 21, 2024
Barr Lake 30K and 15K
Jul 14, 2024
Commerce City, CO
Wild For Life Triathlon
Oct 13, 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. RMRR Fall Marathon Training Series
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Past DateAug 27, 2023Sunday
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20M, 10M run
More Information
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Thornton, CO
Adams County, CO
2. RMRR Fall Marathon Training Series
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Past DateSep 10, 2023Sunday
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30K, 20K run
More Information
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Thornton, CO
Adams County, CO
3. Adams Half & 5K
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Past DateSep 17, 2023Sunday
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13.1M, 5K run
More Information
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Brighton, CO
Adams County, CO
4. RMRR Fall Marathon Training Series
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Past DateSep 24, 2023Sunday
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20M, 10M run
More Information
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Thornton, CO
Adams County, CO
5. RMRR Trophy Series - January
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Past DateJan 7, 2024Sunday
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10K, 5K run
More Information
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Thornton, CO
Adams County, CO
6. RMRR Spring Marathon Training Series
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Past DateMar 24, 2024Sunday
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20M, 10M run
More Information
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Thornton, CO
Adams County, CO
7. Blue Heron Half and 5K
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Past DateApr 21, 2024Sunday
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13.1M, 5K run
More Information
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Brighton, CO
Adams County, CO
8. RMRR Spring Marathon Training Series
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Apr 28, 2024Sunday
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20M, 10M run
More Information
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Thornton, CO
Adams County, CO
9. Colorado Women's Classic - Westminster
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May 12, 2024Sunday
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10M, 10K, 5K run | kids run
More Information
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Women Only
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Westminster, CO
Adams County, COJefferson County, CO
10. Head and Neck Cancer A Hard Thing to Swallow 5K/10K
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May 12, 2024Sunday
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10K, 5K run
Virtual OptionMore Information
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Thornton, CO
Adams County, CO
11. Firecracker 4 and 8 Mile
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Jun 30, 2024Sunday
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8M, 4M, 1M run
More Information
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Thornton, CO
Adams County, CO
12. Barr Lake 30K and 15K
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Jul 14, 2024Sunday
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30K, 15K trail run
More Information
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Brighton, CO
Adams County, CO
13. Summer Sizzler
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Jul 21, 2024Sunday
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10K, 5K run
More Information
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Westminster, CO
Adams County, COJefferson County, CO
14. Eye Love Logan and Zoe 5K
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Aug 11, 2024Sunday
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5K run | kids run
More Information
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Westminster, CO
Adams County, COJefferson County, CO
15. Hometown Half Marathon
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Aug 11, 2024Sunday
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13.1M, 10K, 5K, 1M run | kids run
Virtual OptionMore Information
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Westminster, CO
Adams County, COJefferson County, CO
16. RMRR Trophy Series - September
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Sep 8, 2024Sunday
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10M, 5K run
More Information
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Thornton, CO
Adams County, CO
17. Westy Half & 5K
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Oct 13, 2024Sunday
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13.1M, 5K run
More Information
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Westminster, CO
Adams County, COJefferson County, CO
18. Wild For Life Triathlon
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Oct 13, 2024Sunday
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sprint triathlon | sprint triathlon relay
More Information
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Commerce City, CO
Adams County, CO
19. Candy Cane Run
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Dec 15, 2024Sunday
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10K, 5M, 1M run | kids run
More Information
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Westminster, CO
Adams County, COJefferson County, CO
20. Candy Cane Course
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Dec 22, 2024Sunday
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12K, 5K run | kids run
More Information
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Westminster, CO
Adams County, COJefferson 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.