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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

August 2019

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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September 2019

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

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