Event details subject to change. Please confirm all information via event website.
Horsetooth Open Water Swim
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 […]
Tri the Rock Kids Tri
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
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? […]
RMRR 5K/10K
Riverwalk Ballfields 9830 Riverdale Rd, Thornton, CO, United StatesEveryone – slow, fast, or in-between – can win at RMRR Trophy Series races. With our handicap scoring system, we predict YOUR finish time based on recent running results, giving you a great […]
Run Rabbit Run Ultra
The Run Rabbit Run courses are very much like life, in that there are many, many little and not so little ups and downs in between the obvious highs and […]
Severance Glow 5K
Welcome to Severance's Severance Days 5K presented by Severance Middle School the Town of Severance with proceeds benefitting Severance Middle School. Held at the Severance Community Park. Severance Days 5K […]
Pikes Peak Ascent
The Pikes Peak Marathon, founded in 1956, is the oldest continually held marathon in the United States, taking runners from Manitou Springs, Colorado, to the summit of Pikes Peak at […]
Superhero 5K/10K
A beloved community tradition, the Superhero Run invites runners, walkers, and families of all ages to suit up in their favorite superhero costumes and race for a cause. With a 5K, […]
Run the Rockies Half Marathon
The Run the Rockies Road 10k and Half Marathon will feature the traditional Run the Rockies Road Race course with runners starting near Copper Mountain; runners will follow the paved […]
All-Out Fallfest
One of Colorado's favorite trails meets one of its most glorious parks at our 9th annual Fallfest 5K, 10K and half marathon! As the courses wind southwest along Big Dry […]
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