Boulder Sunset Triathlon

AUG

28

2027

A lakeside triathlon at Boulder Reservoir featuring a sunrise swim, fast bike and smooth run with Flatirons views, offered in Sprint, Olympic, duathlon, aquabike and relay formats.

Sat 28 Aug 2027

Boulder Reservoir, Colorado

Website

Sprint Olympic

Always double-check with the organizer's website! This page may contain affiliate links.

Boulder Sunset Triathlon 2027

The Boulder Sunset Triathlon takes place at Boulder Reservoir in Boulder, Colorado. The event marks the end of the racing season in the area and is staged at a lakeside venue with views of the Flatirons.

The race program includes a swim held at sunrise, a bike course described as fast, and a smooth run course. Multiple race formats are offered, including Sprint and Olympic individual distances, duathlon, aquabike, and relay entries for Sprint, Olympic, and Duathlon categories. Organizers produce multi-sport events across Nevada, Utah and Colorado and present this race as part of that regional series.

The organizing team emphasizes safety as a primary consideration and stages events for elite, age group and beginner athletes. The listed venue address is 5565 51st St, Boulder, Colorado 80301. Entry options and race formats are available through the event registration channels. Visit the organization's website for the most recent information.