October Races within 50 miles of Windsor, CO on Weekends
Longmont, CO
Paws in the Park
Oct 7, 2023
Westminster, CO
Big Waves Family 5K
Oct 5, 2024
Not So Flatt Breast Cancer Awareness Run/Walk
Oct 5, 2024
Spooky Sprint - Denver
Oct 5, 2024
Westy Half & 5K
Oct 13, 2024
Erie, CO
Eerie Erie
Oct 28, 2023
Loveland, CO
Brakes on Breast Cancer 5K
Oct 22, 2023
Long View Marathon
Oct 12, 2024
Narrowleaf Lake Run
Oct 27, 2024
Boulder, CO
Avery Brewing Company Oktoberfest 4K
Oct 1, 2023
Boulder XC Series Meet 1
Oct 14, 2023
Boulder XC Series Meet 2
Oct 28, 2023
South Boulder Creek parkrun
Mar 22, 2025
Mar 29, 2025
Apr 6, 2024
Apr 13, 2024
48 more
Windsor, CO
Windsor Marathon
Oct 6, 2024
Commerce City, CO
Wild For Life Triathlon
Oct 13, 2024
Fort Collins, CO
CSU Homecoming 5K
Oct 14, 2023
Mustang Music 5K
Oct 14, 2023
Run Fur Fun 5K
Oct 28, 2023
Colorado Brewery Running Series
Oct 6, 2024
Long View Marathon
Oct 12, 2024
Blue Sky Trail Marathon
Oct 19, 2024
Severance, CO
Howl-O-Ween 5K
Oct 21, 2023
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. Avery Brewing Company Oktoberfest 4K
-
Past DateOct 1, 2023Sunday
-
4K run
More Information
-
Boulder, CO
38 miles point to pointBoulder County, CO
2. Big Waves Family 5K
-
Oct 5, 2024Saturday
-
5K run
More Information
-
Westminster, CO
45 miles point to pointAdams County, COJefferson County, CO
3. Its Fall Yall 5K and K9 Canter 1M Fun Run
-
Oct 5, 2024Saturday
-
5K, 1M run
More Information
-
Thornton, CO
42 miles point to pointAdams County, CO
4. Not So Flatt Breast Cancer Awareness Run/Walk
-
Oct 5, 2024Saturday
-
10K, 5K run
More Information
-
Westminster, CO
45 miles point to pointAdams County, COJefferson County, CO
5. South Boulder Creek parkrun
-
Oct 5, 2024Saturday
-
5K run
More Information
-
Boulder, CO
38 miles point to pointBoulder County, CO
6. Spooky Sprint - Denver
-
Oct 5, 2024Saturday
-
13.1M, 10K, 5K, 1M run | kids run
More Information
-
Westminster, CO
45 miles point to pointAdams County, COJefferson County, CO
7. Colorado Brewery Running Series
-
Oct 6, 2024Sunday
-
13.1M, 5K run
More Information
-
Fort Collins, CO
12 miles point to pointLarimer County, CO
8. Windsor Marathon
-
Oct 6, 2024Sunday
-
26.2M, 13.1M, 10K, 5K run | kids run
More Information
-
Windsor, CO
Weld County, CO
9. Paws in the Park
-
Past DateOct 7, 2023Saturday
-
5K run
More Information
-
Longmont, CO
24 miles point to pointBoulder County, CO
10. Strides for Sierra 5K
-
Past DateOct 8, 2023Sunday
-
5K, 1K run
More Information
-
Arvada, CO
48 miles point to pointJefferson County, CO
11. Long View Marathon
-
Oct 12, 2024Saturday
-
26.2M, 13.1M, 5K run
More Information
-
Boston Marathon Qualifier
-
startFort Collins, CO12 miles point to pointfinishLoveland, CO11 miles point to pointLarimer County, COLarimer County, CO
12. Long View Marathon
-
Oct 12, 2024Saturday
-
26.2M, 13.1M, 5K run
More Information
-
Boston Marathon Qualifier
-
startFort Collins, CO12 miles point to pointfinishLoveland, CO11 miles point to pointLarimer County, COLarimer County, CO
13. South Boulder Creek parkrun
-
Oct 12, 2024Saturday
-
5K run
More Information
-
Boulder, CO
38 miles point to pointBoulder County, CO
14. The Pretzel Run Colorado
-
Oct 12, 2024Saturday
-
10K, 5K run | kids run
More Information
-
Louisville, CO
37 miles point to pointBoulder County, CO
15. Westy Half & 5K
-
Oct 13, 2024Sunday
-
13.1M, 5K run
More Information
-
Westminster, CO
45 miles point to pointAdams County, COJefferson County, CO
16. Wild For Life Triathlon
-
Oct 13, 2024Sunday
-
sprint triathlon | sprint triathlon relay
More Information
-
Commerce City, CO
46 miles point to pointAdams County, CO
17. Boulder XC Series Meet 1
-
Past DateOct 14, 2023Saturday
-
5K, 3K, 1K run
More Information
-
Boulder, CO
38 miles point to pointBoulder County, CO
18. CSU Homecoming 5K
-
Past DateOct 14, 2023Saturday
-
5K run
Virtual OptionMore Information
-
Fort Collins, CO
12 miles point to pointLarimer County, CO
19. Mustang Music 5K
-
Past DateOct 14, 2023Saturday
-
5K, 1M run
More Information
-
Fort Collins, CO
12 miles point to pointLarimer County, CO
20. Blue Sky Trail Marathon
-
Oct 19, 2024Saturday
-
26.2M trail run
More Information
-
Fort Collins, CO
12 miles point to pointLarimer 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.