October Classic Races in Colorado on Sundays
City Location
1. Avery Brewing Company Oktoberfest 4K
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Past DateOct 1, 2023Sunday
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4K run
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Boulder, CO
Boulder County, CO
2. Pikes Peak Road Runners Kids Fall Series
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Past DateOct 1, 2023Sunday
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kids run
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Colorado Springs, CO
El Paso County, CO
3. Colorado Brewery Running Series
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Oct 6, 2024Sunday
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13.1M, 5K run
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Fort Collins, CO
Larimer County, CO
4. Hot Chocolate 15K/5K - Denver
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Oct 6, 2024Sunday
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15K, 5K run
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Denver, CO
Denver County, CO
5. Michael J. Fox Foundation Run
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Oct 6, 2024Sunday
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5K run
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Denver, CO
Denver County, CO
6. Pikes Peak Road Runners Fall Series
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Oct 6, 2024Sunday
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3.1M trail run
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Colorado Springs, CO
El Paso County, CO
7. RMRR Trophy Series - October
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Oct 6, 2024Sunday
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12K, 5K run
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Aurora, CO
Arapahoe County, CO
8. Spooky Sprint - Colorado Springs
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Oct 6, 2024Sunday
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13.1M, 10K, 5K, 1M run | kids run
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Colorado Springs, CO
El Paso County, CO
9. Windsor Marathon
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Oct 6, 2024Sunday
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26.2M, 13.1M, 10K, 5K run | kids run
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Windsor, CO
Weld County, CO
10. Strides for Sierra 5K
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Past DateOct 8, 2023Sunday
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5K, 1K run
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Arvada, CO
Jefferson County, CO
11. bRUNch Run
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Oct 13, 2024Sunday
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10K, 5K run | kids run
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Denver, CO
Denver County, CO
12. Expo Park XC
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TentativeOct 13, 2024Sunday
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5K, 4K, 3K, 2K, 0.4M run
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Aurora, CO
Arapahoe County, CO
13. Go Big or Go Gnome 5K
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Oct 13, 2024Sunday
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5K run
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Littleton, CO
Arapahoe County, CO
14. Run the Rocks
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Oct 13, 2024Sunday
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5K run
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Morrison, CO
Jefferson County, CO
15. Westy Half & 5K
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Oct 13, 2024Sunday
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13.1M, 5K run
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Westminster, CO
Adams County, COJefferson County, CO
16. Beware the Bear Trail Races
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Past DateOct 15, 2023Sunday
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14.2K, 5K, 1M trail run
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Morrison, CO
Jefferson County, CO
17. Pikes Peak Road Runners Kids Fall Series
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Past DateOct 15, 2023Sunday
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kids run
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Colorado Springs, CO
El Paso County, CO
18. Pikes Peak Road Runners Fall Series
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Oct 20, 2024Sunday
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4M trail run
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Colorado Springs, CO
El Paso County, CO
19. Brakes on Breast Cancer 5K
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Past DateOct 22, 2023Sunday
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5K run
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Loveland, CO
Larimer County, CO
20. Latino Ultra Nature Adventure
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Past DateOct 22, 2023Sunday
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55K, 13.1M, 10K, 5K run
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Boulder, CO
Boulder 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.