October Races in Colorado
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.
City Location
41. Indian Creek Trail Runs
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Oct 12, 2024Saturday
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50M, 55K, 15M, 5M trail run
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Sedalia, CO
Douglas County, CO
42. 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, COfinishLoveland, COLarimer County, COLarimer County, CO
43. Sage Burner Trail Run
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Oct 12, 2024Saturday
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50K, 28K, 13K, 5K trail run
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Gunnison, CO
Gunnison County, CO
44. South Boulder Creek parkrun
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Oct 12, 2024Saturday
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5K run
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Boulder, CO
Boulder County, CO
45. The Pretzel Run Colorado
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Oct 12, 2024Saturday
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10K, 5K run | kids run
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Louisville, CO
Boulder County, CO
46. 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
47. 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
48. 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
49. 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
50. 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
51. Wild For Life Triathlon
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Oct 13, 2024Sunday
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sprint triathlon | sprint triathlon relay
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Commerce City, CO
Adams County, CO
52. Boulder XC Series Meet 1
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Past DateOct 14, 2023Saturday
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5K, 3K, 1K run
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Boulder, CO
Boulder County, CO
53. Cedarmesa Scenic Peach Loop 5K
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Past DateOct 14, 2023Saturday
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5K run
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Cedaredge, CO
Delta County, CO
54. CSU Homecoming 5K
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Past DateOct 14, 2023Saturday
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5K run
Virtual OptionMore Information
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Fort Collins, CO
Larimer County, CO
55. Harvest Fest
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Past DateOct 14, 2023Saturday
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5K, 1M run
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Pueblo, CO
Pueblo County, CO
56. Mancos Cowboy Half Marathon
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Past DateOct 14, 2023Saturday
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13.1M, 5K run | kids run
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Mancos, CO
Montezuma County, CO
57. Mustang Music 5K
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Past DateOct 14, 2023Saturday
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5K, 1M run
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Fort Collins, CO
Larimer County, CO
58. Suffer Better Fall Trail Run
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Past DateOct 14, 2023Saturday
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50K, 25K trail run
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Pine, CO
Jefferson County, CO
59. Tunnel Vision Duathlon
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Past DateOct 14, 2023Saturday
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duathlon
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Canon City, CO
Fremont County, CO
60. 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
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.