Tri Boulder
July 19, 2025 @ 7:00 AM
‘The Beast’ Long Course distance will be back for its second year! As one of Colorado’s most popular summer triathlons, Tri Boulder offers many different multisport race distances, all in one eventful day.
Take in the natural beauty of the mountain backdrop that sets the scene for this iconic race destination. Most of the bike course will take place on rural Boulder county roads, with spectacular views of the Flatirons and surrounding green fields. Enjoy the after-race party with music, post-race food, plus an awards ceremony with awards and prizes. Mark your calendar for this epic race at the end of July! Over the last several years, it has been directed by Cedric Keppler and his experienced race staff.
Please click here to submit your event for FREE to our online calendar.
We do not allow events without physical locations (IE – virtual runs, runs with locations TBD, etc…).
Please allow 48 hours after submission for an event to appear on the calendar. If you have already listed your event and would like us to update it, please contact us.