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Longmont Triathlon Race Details

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2019 Results

Longmont Triathlon Course

Check-In; Late Registration

triathlon 152

Visit the patio at Centennial Pool to pick up your bib number and race swag. Remember to register early for best size options.

  • Check-in located on fenced-in patio outside of Centennial Pool.
  • Late registration located at the front desk inside of Centennial Pool.

Friday, May 31

  • 3:30pm-5:30pm

Saturday, June 1

  • Longmont Triathlon from 8:30am to 12pm* (*8:30am-10:30am the Longmont Kids Only Triathlon & Try-a-Tri will be in progress, parking will be limited).


Estimated Start Time (based on estimated swim times)
Posted online by 3pm on Friday, May 31 
Slowest to fastest swim times; first heat at 7am. 


Available at Clark-Centennial Park and Skyline High School. Please be careful when entering/exiting parking areas as bikers may be on the course.

Transition Area: Parking Lot at Centennial Pool 


  • The transition area is an OPEN transition area.
    • Parking lot is fenced off to vehicles, but open to racers; both racers currently racing, and racers getting ready to race
  •  No pre-assigned bike racks.
    • Racking is first come first serve. 
    • Rack your bike in an empty spot.
      • Do not move other people's items as they may be out on the bike portion of the event.
    • When you finish the bike course, re-rack your bike in the same spot.
  • Athletes ONLY in the transition area (support crews will be able to see you in the transition area).
    • Be aware of your surroundings. 
    • While you may be leisurely walking your bike into the area, a racer may be trying desperately to get around you and onto the course.
    • Do not loiter in the transition area.
    • Set your stuff up and then leave the area.
  • No riding bikes in the transition area. 

Triathlon Body Marking & Race Number


  • Body marking takes place near the check-in tent inside pool patio on race day.
  • Numbers are written vertically on your right arm and left calf.  Bib race number must be worn on the front of body during the entire run portion of the event.  

Triathlon Timing and Chips

  • There will be 5 split times.
  • Timing chips are assigned on the pool deck immediately before swim (additional chip details in swim). 
  • Longmont Triathlon is professionally timed and race results link will be posted on this website after the event.  

Finish Arch

Post-Race Festivities

After the race, hang out in the vendor village, filled with booths from amazing sponsors and local vendors!  The award ceremony will take place approximately 20 minutes after the last athlete crosses the finish line.

Longmont Triathlon Awards

Awards given out to the top three finishers in each of the age categories, as well as the overall male and female racers.

Age groups: Under 20, 20-24, 25-29, 30-34, 35-39, 40-44, 45-49, 50-54, 55-59, 60-64, 65 - 69, 70 & over.

Longmont Triathlon Divisions

Triathlon Teams

Don’t want to swim, bike and run in one go?  Grab your friends and divide out the course! Triathlon teams may consist of two or three athletes and it is up to your team who does which portion(s) of the triathlon. 

Registering as a Triathlon Team

  • Teams use the same registration form.
    • All team members need to sign the waiver. Make sure all persons have signed the waiver before sending it in.
    • The person paying should be the primary person filling out the name, address, phone, etc., information on the registration form.  List the names of the swimmer, biker and runner in the spaces provided on the form. 
  • No team entry for Try-a-Tri or Kids Only Triathlons. 

How the Triathlon Team works

  • All team participants are to be body marked with the same race number. 
  • The swimmer will begin with the timing chip and pass it to the biker in the designated “Team Tag” location in the transition area.  Make sure the ankle chip is secured before starting the bike course. 
  • After the bike portion of the race, the biker will pass the chip to the runner at the same “Team Tag” location. 
  • The runner for the team will wear the race bib during run portion of the event.  Please make sure the bib is on the front when crossing the finish line.

Team Awards

  • One Overall Team and top two finishing teams in Masters and Junior divisions.
  • Masters - combined ages of 120 or more for three person teams, or combined ages of 80 or more for two person teams.
  • Juniors - combined ages less than 120 for three person teams or combined ages less than 80 for two person teams


Triathlon Wheelchair Division

Wheelchair Division Race Course

The triathlon course for the wheelchair division is primarily the same course with a couple of modifications for accessibility. 


  • After the swim, athletes will exit the pool down the ramp, through the respective locker rooms and out the front doors of Centennial Pool into the transition area. 


  • The bike course and exiting/entering of the transition area is the same.


  • The run course will start up Independence Dr, turn right onto the bike lane on Mountain View Ave- merging with the bike course. 
  • Continue on the bike course on Pace to 5th Ave. 
  • Turn Right onto 5th Ave to Alpine St.  Turn Right onto Alpine St, and continue back to Centennial Pool. 
  • Finish by turning Left into the Clark Centennial parking lot (just south of the sand volley ball pit), and merge onto the side walk and turn Right onto the grass for a short push through the finish line!

Wheelchair Division Awards

Top Overall Male & Top Overall Female.



A Brief History of the Longmont Triathlon

In 1981, the first Longmont Triathlon started with 56 participants.

The event was held as 3 separate events. The run was a 10K that started at 9am, the 25 mile bike race started at noon and the 1000 meter swim began at 3pm - truly an all day event! There were no transition times, but the times for all three individual events were added together to determine the winner. Overall winners that year were Patti McNitt and Dennis Wilson, both in the 20-29 age category. The cost for the race, which included a 50/50 t-shirt and refreshments, was $12. The oldest age group offered was 40 and over.

This format continued for one more year with the bike changing from 25 miles to 19 in the second year. In subsequent years, the race was combined so all events were consecutive. In addition, the course has seen numerous changes most dictated by road construction and the growth of Longmont's east side.

The Longmont Triathlon is becoming a historic event in Longmont and, with a 7-0 vote in 2014, the Longmont City Council unanimously supported continuing the tradition.

Longmont Triathlon Race Details | Longmont Try-a-Tri | Triathlon Swim | Triathlon Bike & Run

Longmont Kids Only Triathlon Information.

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