Race Description

Be a part of the longest, continuous running Triathlon in Colorado!  We pride ourselves on a quality race course, experienced event organizers, positive volunteers, fun, friendly, and supportive race atmosphere.  Add the Longmont Triathlon to your race calendar, and start the tradition!

Race Fees:

Individual $60 |  Team $75

Price increases $10 on May 2nd.  Registration ENDS at 12noon on Wednesday, May 31. 

Race Distances: 

  • Swim:  525 yards indoor pool swim
  • Bike: 12 miles
  • Run: 5K
  • Wheelchair Division:  slightly modified course, same distances.

Late Registration & Race Check-In options
Centennial Pool, 1201 Alpine St., Longmont, CO

  • Friday, June 2, from 3:30pm-5:30pm
  • Saturday, June 3 from 8:30am*-12pm

*8:30am-10:30am, Longmont Kids' Only Triathlon & Longmont Try-a-Tri races will be in progress, parking will be limited.

Day-of Timeline

  • 6am - transition area opens
  • 7am - first wave of swimmers (slowest to fastest)
    • Continuous "waves" will be sent depending upon projected swim times. 
    • The transition is open throughout the race, be mindful of people racing when setting up your area.  

Awards for the top 3 male/female in each age group, plus Overall Male & Female!

Sorry, no refunds for special events. 

Please visit our webpage for all race details!

Register TODAY to secure your spot, race is capped at 350 participants! 

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Contact Information

Sara Taylor

37th Annual Longmont Triathlon - Disclaimer

Race Information

  • Location: Longmont, CO
  • Race Date: 06/04/2018 08:00 (Estimated)
  • Categories: Individual, Junior Team: Combined Ages 119ys or Less, Masters Team: Combined Ages 120yrs or More
  •   Manage My Registration

  • add race to calendar    Add to my calendar 2017-06-04 08:00:00 2017-06-04 08:00:00 America/Denver 37th Annual Longmont Triathlon Longmont, CO Sara Taylor sara.taylor@longmontcolorado.gov
Longmont, CO Weather
37th Annual Longmont Triathlon weather history
  • Based on a 5 year average and a race date of June 4th, Longmont can expect temperatures between 82℉ and 52℉ with humidity around 44% and precipitation of 0".
    Last year the weather condition was Sunny.
  • Longmont current weather
  • Clear 33.1℉ Clear