Boulder Rez Half Marathon
Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United StatesHalf Marathon, 10K, 5K, Relay
Colorado Triathlete
Your news source for triathlon in Colorado since 1999!
Loading view.
Colorado Multisport Calendar
Run
Boulder Sunrise Triathlon
Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United StatesKick off your summer of racing in Boulder.
Frisco Triathlon
Frisco Bay Marina 267 Marina Road, Frisco, CO, United StatesAre you looking for a new challenge this summer? Register for the 8th Annual Frisco Triathlon featuring stand-up-paddle boarding, mountain biking, and trail running. This twist on a triathlon is open to all ability levels and encourages athletes to take on a new multi-sport event. The Frisco Triathlon was named “Best Triathlon” in Elevation Outdoors […]
