October Races within 50 miles of Aurora, CO on Saturdays
Longmont, CO
Paws in the Park
Oct 7, 2023
Denver, CO
Dare Great Things Cross Country Challenge
Oct 7, 2023
Grace Race 5K
Oct 7, 2023
Miles for Moms
Oct 7, 2023
UpStander 5K
Oct 7, 2023
Hell Week Fitness 5K by Orangetheory Colorado
Oct 28, 2023
Colorado Brewery Running Series
Oct 26, 2024
MonsterDash Run
Oct 26, 2024
Aurora, CO
Colorado Brewery Running Series
Oct 12, 2024
Idaho Springs, CO
Halloween Fun Run
Oct 28, 2023
Centennial, CO
Hoofin' It Through the Hollows 5K
Oct 21, 2023
Westminster, CO
Big Waves Family 5K
Oct 7, 2023
Not So Flatt Breast Cancer Awareness Run/Walk
Oct 5, 2024
Spooky Sprint - Denver
Oct 5, 2024
Erie, CO
Eerie Erie
Oct 28, 2023
Louisville, CO
The Pretzel Run Colorado
Oct 12, 2024
Castle Rock, CO
Castle Rock Trail Festival
Oct 5, 2024
Loveland, CO
Long View Marathon
Oct 12, 2024
Littleton, CO
Get Your Rear in Gear - Denver Metro
Oct 7, 2023
Boulder, CO
Boulder XC Series Meet 1
Oct 14, 2023
Boulder XC Series Meet 2
Oct 28, 2023
South Boulder Creek parkrun
Mar 23, 2024
Mar 30, 2024
Apr 6, 2024
Apr 13, 2024
48 more
Morrison, CO
Great Trailhead Foot Race
Oct 19, 2024
Palmer Lake, CO
YMCA Creepy Crawl 5K
Oct 28, 2023
Sedalia, CO
Indian Creek Trail Runs
Oct 12, 2024
Fort Collins, CO
Long View Marathon
Oct 12, 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. Castle Rock Trail Festival
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Oct 5, 2024Saturday
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50K, 13.1M, 10K, 5K trail run
More Information
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Castle Rock, CO
25 miles point to pointDouglas County, CO
2. Its Fall Yall 5K and K9 Canter 1M Fun Run
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Oct 5, 2024Saturday
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5K, 1M run
More Information
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Thornton, CO
12 miles point to pointAdams County, CO
3. Not So Flatt Breast Cancer Awareness Run/Walk
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Oct 5, 2024Saturday
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10K, 5K run
More Information
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Westminster, CO
13 miles point to pointAdams County, COJefferson County, CO
4. South Boulder Creek parkrun
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Oct 5, 2024Saturday
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5K run
More Information
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Boulder, CO
31 miles point to pointBoulder County, CO
5. Spooky Sprint - Denver
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Oct 5, 2024Saturday
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13.1M, 10K, 5K, 1M run | kids run
More Information
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Westminster, CO
13 miles point to pointAdams County, COJefferson County, CO
6. Big Waves Family 5K
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Past DateOct 7, 2023Saturday
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5K run
More Information
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Westminster, CO
13 miles point to pointAdams County, COJefferson County, CO
7. Dare Great Things Cross Country Challenge
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CancelledOct 7, 2023Saturday
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2M run | kids run
More Information
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Denver, CO
8 miles point to pointDenver County, CO
8. Get Your Rear in Gear - Denver Metro
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Past DateOct 7, 2023Saturday
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5K run | kids run
More Information
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Littleton, CO
13 miles point to pointArapahoe County, CO
9. Grace Race 5K
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Past DateOct 7, 2023Saturday
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5K run
More Information
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Denver, CO
8 miles point to pointDenver County, CO
10. Miles for Moms
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Past DateOct 7, 2023Saturday
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3M run
More Information
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Denver, CO
8 miles point to pointDenver County, CO
11. Paws in the Park
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Past DateOct 7, 2023Saturday
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5K run
More Information
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Longmont, CO
33 miles point to pointBoulder County, CO
12. UpStander 5K
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Past DateOct 7, 2023Saturday
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5K run
More Information
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Denver, CO
8 miles point to pointDenver County, CO
13. Colorado Brewery Running Series
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Oct 12, 2024Saturday
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5K run
More Information
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Aurora, CO
Arapahoe County, CO
14. Indian Creek Trail Runs
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Oct 12, 2024Saturday
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50M, 55K, 15M, 5M trail run
More Information
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Sedalia, CO
21 miles point to pointDouglas County, CO
15. Long View Marathon
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Oct 12, 2024Saturday
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26.2M, 13.1M, 5K run
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Boston Marathon Qualifier
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startFort Collins, CO61 miles point to pointfinishLoveland, CO48 miles point to pointLarimer County, COLarimer County, CO
16. South Boulder Creek parkrun
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Oct 12, 2024Saturday
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5K run
More Information
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Boulder, CO
31 miles point to pointBoulder County, CO
17. The Pretzel Run Colorado
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Oct 12, 2024Saturday
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10K, 5K run | kids run
More Information
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Louisville, CO
23 miles point to pointBoulder County, CO
18. Boulder XC Series Meet 1
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Past DateOct 14, 2023Saturday
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5K, 3K, 1K run
More Information
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Boulder, CO
31 miles point to pointBoulder County, CO
19. Suffer Better Fall Trail Run
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Past DateOct 14, 2023Saturday
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50K, 25K trail run
More Information
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Pine, CO
34 miles point to pointJefferson County, CO
20. Great Trailhead Foot Race
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Oct 19, 2024Saturday
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10M, 5K trail run | kids run
More Information
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Morrison, CO
20 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.