Saturday September 11th, 2021
2021 COVID-19 Update: As of January 6th the Colorado Department of Public Health has moved the “safer at home” dial from level red back down to level orange. This is a positive move towards our target goal of “level green” as the vaccine rollout remains on schedule. Registration for this event is currently open. We’ll continue to post the latest health department announcements on this page. Should the “reopening” be delayed, or the situation regress and we’re forced to cancel, 100% of your entries will be rolled to the 2022 edition of this event.
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.