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Boulder Reservoir

5565 N 51st St.
Boulder, CO 80301 United States
(303) 441-3461 https://bouldercolorado.gov/parks-rec/boulder-reservoir

June 2019

Boulder Sunrise Triathlon

June 23 @ 7:00 am - 12:00 pm
Boulder Reservoir, 5565 N 51st St.
Boulder, CO 80301 United States
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If you enjoy smaller and less stressful wave starts, a well-marked course, and great SWAG, this is YOUR race! With a Sprint, Olympic, Duathlon, 10K and 5K Run, we guarantee a fun day for the entire family at the base of the spectacular foothills!

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July 2019

Tri Boulder

July 21
Boulder Reservoir, 5565 N 51st St.
Boulder, CO 80301 United States
+ Google Map

You asked for it, you got it! Introducing ‘The Beast’ long course triathlon, and aquabike to one of Colorado’s already most popular races. Tri Boulder also features an Olympic, Sprint, and Relay so we’ve got a distance to fuel everyone’s competitive spirit. Mark your calendars because this is a race you don’t want to miss!

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August 2019

Boulder Sunset

August 25
Boulder Reservoir, 5565 N 51st St.
Boulder, CO 80301 United States
+ Google Map

Join us at the Boulder Reservoir for the 12th annual Boulder Sunset Triathlon. A local favorite due to its later start, and will sell out in early August at 1,200 athletes. With a Sprint, Olympic, Duathlon, and 5K/10K runs, we guarantee a fun day for the entire family.

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September 2019

Boulder Rez Marathon, 3/4 Marathon, Half Marathon, 10K

September 8
Boulder Reservoir, 5565 N 51st St.
Boulder, CO 80301 United States
+ Google Map

Quickly becoming a Boulder classic! This 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.

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