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Whether a race, special group ride, training opportunity, or cycling-related community event, the 303 calendar showcases it all. To have an event posted here please follow this link: Event Policy Submission & Guidelines.
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September 11 @ 8:00 am - 5:00 pm MDT
The Harvest Moon Triathlon the 21st edition of this event takes place at the beautiful Boulder Reservoir on September 11th, 2021. 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.