Tri Boulder Sprint, Olympic & Long Course

Schedule

Sat Jul 18 2026 at 07:15 am to 03:30 pm

UTC-06:00

Location

Boulder Reservoir | Boulder, CO

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The Beast Long Course Triathlon is back for another year at the Boulder Reservoir! This race has become one of Colorado’s most popular summer races. Tri Boulder also features a Long Course Duathlon and Aquabike, Olympic & Sprint Triathlon and Multisport Relay. That means 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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Where is it happening?

Boulder Reservoir, Boulder, United States

Event Location & Nearby Stays:

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BBSC Triathlon

Host or Publisher BBSC Triathlon

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Running in BoulderMarathons in Boulder

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