LA Tri Series 2025

SS

From Spectrum Sports Management

  • Date Sat 4th October 2025
  • Time 8:00AM EDT
  • Location San Dimas, Los Angeles
  • Price $85.00 - $188.00
  • Races 3 races
  • Distances Olympic, Super Sprint, Sprint

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Event summary

Get ready for an exhilarating day of athleticism and community spirit at the LA Tri Series 2025, organized by Spectrum Sports Management! Mark your calendars for Saturday, October 4, 2025, as this iconic event returns to the stunning Frank G. Bonelli Regional Park in San Dimas, Los Angeles. As the longest-running triathlon series in the United States, the LA Triathlon invites athletes of all ages and skill levels to experience a thrilling combination of swimming, biking, and running against the breathtaking backdrop of the San Gabriel Mountains.

Participants can choose from three unique race distances: the Super Sprint (300m swim, 12k bike, and 5k run), the Championship Distance (1000m swim, 35k bike, and 10k run), and the Iron Bruin collegiate distance race (1000m swim, 24k bike, and 5k run), in proud partnership with UCLA Triathlon. Whether you're a first-time triathlete discovering your passion or a seasoned competitor aiming for a personal best, the LA Tri Series promises an unforgettable experience filled with excitement, camaraderie, and the chance to push your limits! Join us for a day that celebrates health, fitness, and the vibrant spirit

LA Tri Series 2025

Sat 4th October 2025

An older man with a gray beard stands in water wearing a green and black XTERRA wetsuit. He holds orange swim goggles and shows a watch on his wrist, with "858" marked on his hand. Trees and swimmers are visible in the background. A male athlete in a black triathlon suit and sunglasses crosses the finish line of a race, raising both hands in a victory gesture under a large blue inflatable arch that reads "FINISH. A smiling cyclist wearing a helmet and colorful triathlon suit rides a white Cervélo bike on a paved road with a guardrail and greenery in the background.

Organiser's Description

First launched in 1983, the LA Tri series is the longest-running triathlon series in the United States. Hosted at the foot of the San Gabriel mountains on the gorgeous grounds of Frank G Bonelli Regional Park, the LA Triathlon features a lake swim in the glassy waters of Puddingstone Reservoir, accelerates into a gorgeously looped bike course defined by right-hand turns and gently rolling hills and finishes with a well-shaded run along the treelined pathways of Bonelli.

The course is designed for athletes of all ages and skill levels – ideal for first-time triathletes venturing into a newfound passion and grizzled veterans chasing a personal best. On Event day we host three unique races; a Super Sprint (300m/12k/5k), Championship Distance (1000m/35k/10k) and, in proud partnership with UCLA Triathlon, the Iron Bruin collegiate distance race(1000m/24k/5k). The Iron Bruin race is open to collegiate athletes from all schools.

Races

  • Championship Distance

    1000 Meter Swim, 35km Bike, 10k Run. Only $168 Until September 20th.

    $188.00

  • Super Sprint

    300 Meter Swim, 12km Bike Ride, 5k Run. Only $128.00 Until September 20th

    $148.00

  • IronBruin Collegiate Distance

    1000 Meter Swim, 24km Bike, 5k Run. Available to All Students Athletes Enrolled in College or University.

    $85.00

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Location

Puddingstone Lake, San Dimas, CA 91773, United States

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Oct 4, 2025

$85.00 - $188.00