Come run in one of the biggest endurance sporting events of the Summer, the Boulder Sunset Triathlon, Duathlon and 5K/10K Run. Race alongside more than one thousand athletes from across the west and finish to an amazing post-race party. Register early as this race sells out in early August!
Boulder Sunset 5K will take place in the late morning. Register for Sunrise and Sunset to qualify for a chance to win prizes and race for the nonprofit of your choice!
5K Course
Start Time: 11:00am
This out & back course is flat, fast & beautiful as you run across the Boulder Reservoir dam. There will be two opportunities to fuel up on the course.
10K Course
Start Time: 11:00am
This out & back course is flat, fast & beautiful as you run across the Boulder Reservoir dam. There will be 5 opportunities to fuel up on the course.