October Classic Races in Colorado
City Location
1. AppleFest 5K
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Oct 4, 2025Saturday
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5K run
More Information
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Cedaredge, CO
Delta County, CO
2. Aspen parkrun
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Oct 4, 2025Saturday
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5K run
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Aspen, CO
Pitkin County, CO
3. Colorado Springs Marathon
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Oct 4, 2025Saturday
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26.2M, 13.1M, 5K run | kids run
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Colorado Springs, CO
El Paso County, CO
4. D'Evelyn Dash
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Past DateOct 4, 2024Friday
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5K, 2K run
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Denver, CO
Denver County, CO
5. Nielson Two Mile Challenge
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Oct 4, 2025Saturday
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2M trail run
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Colorado Springs, CO
El Paso County, CO
6. Rim to Rim Royal Gorge Races
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Oct 4, 2025Saturday
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13.1M, 8M, 5K trail run
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Canon City, CO
Fremont County, CO
7. Rocky's Backyard Ultra Race
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Oct 4, 2025Saturday
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4.2M trail run | last man standing
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Estes Park, CO
Larimer County, CO
8. South Boulder Creek parkrun
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Oct 4, 2025Saturday
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5K run
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Boulder, CO
Boulder County, CO
9. West Elk Challenge
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Oct 4, 2025Saturday
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26.2M trail run
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Crawford, CO
Delta County, CO
10. Above the Clouds Ultra
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Past DateOct 5, 2024Saturday
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50K, 10K trail run
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Woodland Park, CO
Teller County, CO
11. Big Waves Family 5K
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Past DateOct 5, 2024Saturday
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5K run
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Westminster, CO
Adams County, COJefferson County, CO
12. Camp 4 Coffee Cart to Cart Trail Race
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Past DateOct 5, 2024Saturday
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19M, 10M trail run
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Crested Butte, CO
Gunnison County, CO
13. Camp 4 Coffee Cart to Cart
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Past DateOct 5, 2024Saturday
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19M, 10M trail run
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Crested Butte, CO
Gunnison County, CO
14. Castle Rock Trail Festival
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Past DateOct 5, 2024Saturday
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50K, 13.1M, 10K, 5K trail run
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Castle Rock, CO
Douglas County, CO
15. CU DPT Thera-Trot
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Past DateOct 5, 2024Saturday
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5K run
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Aurora, CO
Arapahoe County, CO
16. Dead Man 5K Trail Run
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Past DateOct 5, 2024Saturday
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5K run
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Trinidad, CO
Las Animas County, CO
17. Fall festival 5K run walk Crawl
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Past DateOct 5, 2024Saturday
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5K, 1M run
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Akron, CO
Washington County, CO
18. Grace Race 5K
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Past DateOct 5, 2024Saturday
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5K run
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Denver, CO
Denver County, CO
19. Healthy Kids Running Series - Fort Collins
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Past DateOct 5, 2024Saturday
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kids run
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Fort Collins, CO
Larimer County, CO
20. Hot Chocolate 15K/5K - Denver
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Oct 5, 2025Sunday
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15K, 5K run
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Denver, CO
Denver 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.