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Horsetooth Open Water Swim

Horsetooth Reservoir 4200 W County Road 38 E, Fort Collins

Swim a 10K, 2.4 miles, 1.2 miles, 1000 meters, or 250 meters in the Horsetooth Reservoir.  The Horsetooth Open Water Swims incorporated as an independent 501(c)3 not-for-profit organization.  Our current […]

Lead King Loop

Thompson Park Marble

Join us for a great day of running through the spectacular fall colors in the heart of the Elk Mountain Range. Run, walk, or hike the 25k loop around Lead King […]

Tri the Rock Kids Tri

Butterfield Park 3952 Butterfield Crossing Drive, Castle Rock

We welcome you to our 17th annual youth triathlon! Tri the Rock is designed for, and open to youth ages 5 to 18. Come for a great day of fun, food, […]

Nun Run Half Marathon

deKoevend Park 6315 S. University Blvd., Centennial

Do you support life at all stages from conception until natural death? Do you believe every human being should be treated with the utmost dignity and the respect they deserve? […]

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