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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

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June 2018

Boulder Sunrise Triathlon

June 24 @ 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 2018

Tri Boulder

July 22
Boulder Reservoir, 5565 N 51st St.
Boulder, CO 80301 United States
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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 2018

Boulder Sunset

August 25
Boulder Reservoir, 5565 N 51st St.
Boulder, CO 80301 United States
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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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October 2018

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

October 7
Boulder Reservoir, 5565 N 51st St.
Boulder, CO 80301 United States
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Boulder’s biggest marathon due to its early October date, which brings out the best running temperatures of the year. This popular course will take you around the reservoir, awesome singletracks, a packed-dirt trail on the dam, and paved roads.

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