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The Harvest Moon Half Distance Triathlon: The 27th edition of this event takes place at the beautiful Boulder Reservoir on May 31st 2026 and we couldn't be more excited to be about the new date. Est. in 2000 this Colorado classic provides the veterans to beginners a challenging, affordable, and competitive race with a local flavor. Whether this is your final event of the season, or a tune-up for a fall long course triathlon, don't miss the Harvest Moon! The Aquabike portion is one of the fastest growing Aquabikes in the nation, while the duathlon is Colorado's only long-course duathlon.
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Event Venue & Nearby Stays
Boulder Reservoir, Boulder, United States
Tickets
Concerts, fests, parties, meetups - all the happenings, one place.
