Upcoming Races in Colorado on Sundays
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. Fall Equinox Marathon
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Sep 22, 2024Sunday
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26.2M, 13.1M, 5M run
Virtual OptionMore Information
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Boston Marathon Qualifier
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Fort Collins, CO
Larimer County, CO
102. Golden Gallop
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Sep 22, 2024Sunday
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10K, 5K run | kids run
More Information
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Golden, CO
Jefferson County, CO
103. Oktoberfest Sprint Triathlon
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Sep 22, 2024Sunday
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sprint triathlon
More Information
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Longmont, CO
Boulder County, CO
104. Pikes Peak Ascent and Marathon
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Sep 22, 2024SundayMarathon
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26.2M trail run
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Manitou Springs, CO
El Paso County, CO
105. Pony Express Run
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Sep 22, 2024Sunday
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15M trail run
More Information
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Woodland Park, CO
Teller County, CO
106. Red Feather Trail Jamboree
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Sep 22, 2024Sunday
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13.1M trail run
More Information
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Red Feather Lakes, CO
Larimer County, CO
107. Sunlight Showdown
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Sep 22, 2024Sunday
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13.1M trail run
More Information
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Glenwood Springs, CO
Garfield County, CO
108. 14er Fest Races
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Sep 29, 2024Sunday
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14K, 5K trail run
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Buena Vista, CO
Chaffee County, CO
109. Bear Chase Race - Half Marathon & 10K
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Sep 29, 2024Sunday
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13.1M, 10K trail run
More Information
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Lakewood, CO
Jefferson County, CO
110. Boulderthon: Downtown Boulder Marathon
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Sep 29, 2024Sunday
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26.2M, 13.1M, 10K, 5K run | kids run
More Information
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Boulder, CO
Boulder County, CO
111. Last Call Triathlon
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Sep 29, 2024Sunday
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sprint, supersprint triathlon | sprint triathlon relay | sprint duathlon | sprint duathlon relay | sprint aquathon
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Loveland, CO
Larimer County, CO
112. Ridgway 1K Rally Thru the Alley
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Sep 29, 2024Sunday
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1K run
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Ridgway, CO
Ouray County, CO
113. Run With The Wolves
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Sep 29, 2024Sunday
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5K, 1K run
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Arvada, CO
Jefferson County, CO
114. Sangre de Cristo Ultras
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Sep 29, 2024Sunday
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27K, 8M trail run
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Westcliffe, CO
Custer County, CO
115. Sawatch Ascent
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Sep 29, 2024Sunday
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50K trail run
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Nathrop, CO
Chaffee County, CO
116. Colorado Brewery Running Series
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Oct 6, 2024Sunday
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13.1M, 5K run
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Fort Collins, CO
Larimer County, CO
117. Hot Chocolate 15K/5K - Denver
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Oct 6, 2024Sunday
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15K, 5K run
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Denver, CO
Denver County, CO
118. Michael J. Fox Foundation Run
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Oct 6, 2024Sunday
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5K run
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Denver, CO
Denver County, CO
119. Pikes Peak Road Runners Fall Series
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Oct 6, 2024Sunday
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3.1M trail run
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Colorado Springs, CO
El Paso County, CO
120. RMRR Trophy Series - October
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Oct 6, 2024Sunday
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12K, 5K run
More Information
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Aurora, CO
Arapahoe 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.