525 yard swim | 12 mile bike | 5K (3.1 mile) run
Individual, Wheelchair, and Team Divisions
If you had to leave before the award ceremony, no worries! Your medal is waiting for you at Centennial Pool, and CONGRATULATIONS!
Note: We typically run ahead of schedule. Swimmers need to report to the pool 30 minutes prior to their scheduled swim time. The announcer will be giving updates on swim starts throughout the morning.
If you need to modify your estimated swim time, please touch base with us during Pre-Race Check-In, Friday (June 2) from 3:30-5:30pm or Saturday (June 3) from 8:30-12pm, in person, on the patio at Centennial Pool.
Last Chance Registration:
Friday (June 2) from 3:30-5:30pm or Saturday (June 3) from 8:30-12pm*, in person, at the Front Desk at Centennial Pool. *parking will be limited from 8:30-10:30am due to the Longmont Kids' Only Triathlon & Longmont Try-a-Tri.
No Race Day (Sunday, June 4) Registration.
2017 Early Registration- CLOSED at 12noon, Wednesday, May 31.
- LTrac: City of Longmont's Recreation Registration System
- Race Entry
- Download the Longmont Triathlon entry form.
- You can mail the entry form to Centennial Pool, 1201 Alpine St. or drop it off at any City of Longmont Recreation facility.
- Just make sure your registration form is in our hands by 12noon on Wednesday, May 31!
- Registration ends at 12pm on Wednesday, May 31.
- Registration will resume with pre-race check-in times on Friday and Saturday, June 2 & 3.
Questions regarding either the Longmont Triathlon or Longmont Try-a-Tri? Call Centennial Pool (303) 651-8406 or e-mail
$15 Transfer Fee: change your mind about racing and have a buddy who wants to take your place?
- Contact Sara! No transfers after May 31, 12noon.
Note: Races will be held regardless of weather. Sorry, refunds are not available for special events. Unsure on registering? Plans not yet solidified? Consider Friday night or Saturday morning registration.
Check out the ways YOU can support the Longmont Triathlon Weekend!
Be a vital part of the longest-running triathlon in the continental U.S. and take advantage of an amazing marketing opportunity! Email Sara to learn more!