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 […]
Boulder Rez Marathon
Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United StatesThis amazing run course will take you alongside the Boulder Reservoir, remaining mostly on dirt roads and trails. The course is flat with only 200 feet of gain, and will provide views of the Boulder Reservoir and Rocky Mountains. Marathon, 3/4 Marathon, Half Marathon, 10K, Relay
Timberview Trail Run
Lory State Park (Fort Collins) 708 Lodgepole Drive, Bellvue, CO, United StatesCrisp morning air and a summer sunrise in Colorado. YES PLEASE! Join us on the foothills at Lory State Park for a fun & beautiful morning trail race. This run race features three distances (a 10 mile, a 5 mile and a 5K) that are great for just about any level athlete at any age. […]
Run the Rockies Trail 10K & Half Marathon
Frisco Nordic Center 616 Recreation Way, Frisco, CO, United StatesThe Run the Rockies Trail 10k and Half Marathon will lead runners through the Frisco Peninsula trails with breathtaking views of Lake Dillon and the Ten Mile Range. This is a great course for a first time half-marathoner or runner looking for a fun course that offers single track and dirt road trails. Racers will […]
XTERRA Lake Tahoe
Lake Tahoe, California Lake Tahoe, CA, United StatesAn all-time classic off-road triathlon course! Triathletes will start from a new location at Sand Harbor State Park in Lake Tahoe, one of the purest and deepest lakes in North America. Trail Runs take place on the same day with the course starting and finishing at the Village Green in Incline Village, NV. 26 World […]
Boulder Sunset Triathlon
Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United StatesJoin us for an unforgettable morning at the Boulder Reservoir. Although this race does not take place at sunset, it will take place at the end of the summer-- it's sister race is the Boulder Sunrise in June. Experience gorgeous views at the recently upgraded venue. All participants receive stellar race shirts and finisher medals, […]
XTERRA Tremblant
Domain St-Bernard, Quebec, Canada Domain St-Bernard, Quebec, CanadaWelcome to XTERRA Tremblant. This will be year three of this amazing off-road event in the heart of Quebec's triathlon mecca. The venue is a unique ecological preserve that is transformed for one weekend only every year into an off-road triathlon getaway.
