September 5Ks within 50 miles of Lakewood, CO
1. Labor Day Half Marathon
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Sep 1, 2025Monday
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13.1M, 10K, 5K run
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Parker, CO
21 miles point to pointDouglas County, CO
2. South Boulder Creek parkrun
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Sep 6, 2025Saturday
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5K run
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Boulder, CO
24 miles point to pointBoulder County, CO
3. Firestorm 5K
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Past DateSep 7, 2024Saturday
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5K run
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Littleton, CO
7 miles point to pointArapahoe County, CO
4. Historic Elizabeth Main Street 5K
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Past DateSep 7, 2024Saturday
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5K run | novelty run
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Elizabeth, CO
35 miles point to pointElbert County, CO
5. Waneka Classic
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Past DateSep 7, 2024Saturday
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5K run
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Lafayette, CO
20 miles point to pointBoulder County, CO
6. 9/11 Heroes Run - Denver
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Past DateSep 8, 2024Sunday
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5K run
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Denver, CO
5 miles point to pointDenver County, CO
7. Denver HOPErun
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Past DateSep 8, 2024Sunday
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5K run
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Golden, CO
8 miles point to pointJefferson County, CO
8. Denver Rocks Run 5K/10K
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Past DateSep 8, 2024Sunday
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10K, 5K run
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Denver, CO
5 miles point to pointDenver County, CO
9. RMRR Trophy Series - September
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Past DateSep 8, 2024Sunday
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10M, 5K run
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Thornton, CO
13 miles point to pointAdams County, CO
10. All-Out Fall Fest
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Sep 13, 2025Saturday
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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
9 miles point to pointAdams County, COJefferson County, CO
11. Denver 5K
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Sep 13, 2025Saturday
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5K run
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Denver, CO
5 miles point to pointDenver County, CO
12. Colorado Dup15q Believe Walk and 5K Run
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Past DateSep 14, 2024Saturday
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5K run
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Littleton, CO
7 miles point to pointArapahoe County, CO
13. Friends of the National Center Science Stride 5K
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Past DateSep 14, 2024Saturday
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5K run
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Boulder, CO
24 miles point to pointBoulder County, CO
14. Heroes and Villains Team Hope 5K Walk and Run
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Past DateSep 14, 2024Saturday
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5K run
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Denver, CO
5 miles point to pointDenver County, CO
15. HRCA Oktoberfest 5K
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Past DateSep 14, 2024Saturday
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5K run
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Littleton, CO
7 miles point to pointArapahoe County, CO
16. Nun Run
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Sep 14, 2025Sunday
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13.1M, 5K run
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Denver, CO
5 miles point to pointDenver County, CO
17. South Boulder Creek parkrun
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Past DateSep 14, 2024Saturday
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5K run
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Boulder, CO
24 miles point to pointBoulder County, CO
18. BackCountry 5K
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Past DateSep 15, 2024Sunday
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5K run
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Highlands Ranch, CO
12 miles point to pointDouglas County, CO
19. Farmers 5000
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Past DateSep 15, 2024Sunday
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5K run
Virtual OptionMore Information
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Wheat Ridge, CO
4 miles point to pointJefferson County, CO
20. Flyin' Lion 5K
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Past DateSep 15, 2024Sunday
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5K run
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Littleton, CO
7 miles point to pointArapahoe 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.