Colorado Multisport Calendar

Boulder Peak Triathlon

Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United States

The Boulder Peak Triathlon, Duathlon & Aquabike on July 10th is one of the countries longest and most well-known triathlons. For the veteran or first time racer, this is THE […]

Tri Boulder

Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United States

As one of Colorado’s most popular summer triathlons, Tri Boulder offers many different multisport race distances, all in one eventful day! Join us for a full day of racing at […]

Boulder Sunset Triathlon

Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United States

Join 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 […]

Lake Nighthorse Sprint & Olympic Triathlons

Lake Nighthorse 1795 C.R. 210, Durango, CO, United States

Sprint Distance Triathlon - 750M Swim, 20km Bike, 5km Run Olympic Distance Triathlon - 1500M Swim, 40km Bike, 10km Run

Boulder Peak Triathlon logo