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
101. Colorado Marathon
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May 7, 2023Sunday
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26.2M, 13.1M, 10K, 5K run | 26.2M relay
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Boston Marathon Qualifier
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Fort Collins, CO
Larimer County, CO
102. Emerge 5K
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May 7, 2023Sunday
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5K run
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Boulder, CO
Boulder County, CO
103. Fruita Trail Half
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May 7, 2023Sunday
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13.1M trail run
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Fruita, CO
Mesa County, CO
104. Healthy Kids Running Series - Aurora
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May 7, 2023Sunday
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kids run
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Aurora, CO
Arapahoe County, CO
105. Healthy Kids Running Series - Denver
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May 7, 2023Sunday
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kids run
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Denver, CO
Denver County, CO
106. Healthy Kids Running Series
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May 7, 2023Sunday
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kids run
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Trinidad, CO
Las Animas County, CO
107. RMRR Trophy Series - May
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May 7, 2023Sunday
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5M, 5K run
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Denver, CO
Denver County, CO
108. Dash & Dine 5K Series
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May 9, 2023Tuesday
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5K run
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Boulder, CO
Boulder County, CO
109. Airlife Memorial Run
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May 13, 2023Saturday
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10K, 5K run
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Littleton, CO
Arapahoe County, CO
110. Aspen parkrun
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May 13, 2023Saturday
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5K run
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Aspen, CO
Pitkin County, CO
111. Bubble Run - Denver
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May 13, 2023Saturday
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5K novelty run
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Brighton, CO
Adams County, CO
112. Carbon Valley Half Marathon
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May 13, 2023Saturday
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13.1M, 5K, 1M run | 13.1M relay | kids run
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Firestone, CO
Weld County, CO
113. Colorado Brewery Running Series - Resolute Brewing
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May 13, 2023Saturday
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5K run
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Centennial, CO
Arapahoe County, CO
114. Colorado Friends of First Responders
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May 13, 2023Saturday
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10K, 5K run | kids run
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Littleton, CO
Arapahoe County, CO
115. ENDURE 12-Hour, 24-Hour, and Half Marathon
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May 13, 2023Saturday
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24H, 12H, 13.1M, 10K trail run
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Divide, CO
Teller County, CO
116. Federal Cup 5K
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May 13, 2023Saturday
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5K run | kids run
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Lakewood, CO
Jefferson County, CO
117. Fort Collins Mother's Day 5K
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May 13, 2023Saturday
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5K run
Virtual OptionMore Information
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Fort Collins, CO
Larimer County, CO
118. Girls on the Run 5K
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May 13, 2023Saturday
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5K run
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Longmont, CO
Boulder County, CO
119. Girls on the Run 5K
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May 13, 2023Saturday
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5K run
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Colorado Springs, CO
El Paso County, CO
120. Hayden Cog Run
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May 13, 2023Saturday
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8.4M, 5K run | kids run
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Hayden, CO
Routt 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.