Upcoming 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
61. HRCA Mother's Day 5K
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May 11, 2024Saturday
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5K run
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Highlands Ranch, CO
Douglas County, CO
62. Quad Rock 50
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May 11, 2024Saturday
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50M, 25M trail run
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Fort Collins, CO
Larimer County, CO
63. South Boulder Creek parkrun
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May 11, 2024Saturday
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5K run
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Boulder, CO
Boulder County, CO
64. Valkyrie Trail Race
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May 11, 2024Saturday
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50K, 26.2M, 30K, 13.1M, 8M, 4M trail run
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Colorado Springs, CO
El Paso County, CO
65. Vallecito Lake Heavy Half
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May 11, 2024Saturday
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13.1M run
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Bayfield, CO
La Plata County, CO
66. Women's Distance Festival
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May 11, 2024Saturday
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5K trail run
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Colorado Springs, CO
El Paso County, CO
67. Boulder Mothers Day Run
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May 12, 2024Sunday
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13.1M, 10K, 5K trail run
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Boulder, CO
Boulder County, CO
68. Colorado Women's Classic - Westminster
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May 12, 2024Sunday
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10M, 10K, 5K run | kids run
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Women Only
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Westminster, CO
Adams County, COJefferson County, CO
69. Frank Shorter Track Classic
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May 12, 2024Sunday
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track meet
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Longmont, CO
Boulder County, CO
70. Fruita Trail Half
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May 12, 2024Sunday
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13.1M trail run
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Fruita, CO
Mesa County, CO
71. Head and Neck Cancer A Hard Thing to Swallow 5K/10K
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May 12, 2024Sunday
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10K, 5K run
Virtual OptionMore Information
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Thornton, CO
Adams County, CO
72. Mothers Day 5K
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May 12, 2024Sunday
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5K run
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Denver, CO
Denver County, CO
73. Dash & Dine 5K Series
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May 14, 2024Tuesday
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5K run
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Boulder, CO
Boulder County, CO
74. WeAreHealthcare: Color the Campus 1K and 3K (ish)
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May 16, 2024Thursday
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3K, 1K novelty run
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Delta, CO
Delta County, CO
75. Aspen parkrun
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May 18, 2024Saturday
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5K run
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Aspen, CO
Pitkin County, CO
76. Boneyard Boogie
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May 18, 2024Saturday
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5K run | 13K trail run
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Eagle, CO
Eagle County, CO
77. Canine On the Creek
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May 18, 2024Saturday
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5K, 1M run
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Dumont, CO
Clear Creek County, CO
78. Colorado Brewery Running Series
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May 18, 2024Saturday
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5K run
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Lafayette, CO
Boulder County, CO
79. Denver Colfax Marathon
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May 18, 2024Saturday
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5K run
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Boston Marathon Qualifier
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Denver, CO
Denver County, CO
80. Endure Trail Runs
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May 18, 2024Saturday
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24H, 12H, 13.1M, 10K trail run
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Divide, CO
Teller 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.