Race Information

LA Tri Series #1
San Dimas, CA
Los Angeles County
Apr 7, 2024 - Sunday
olympic, sprint triathlon | olympic, sprint duathlon | 5K run
  • Details from event's Active.com listing:

    The oldest and most historic triathlon series in the United States returns in 2024 for it's 39th year of running.  The LA Tri-Series features courses for all levels of training and competition.   Whether you are new in triathlons getting started at our Super Sprint; a seasoned triathlete ready to shake off Winter's cold and get back on the course, or looking for a relay with friends - this series is for you.

    All LA Tri-Series events feature a flat, safe, and easy open water swim in Puddingstone Reservoir; laps around Frank G. Bonelli Regional Park with all right hand turns, limited traffic and safe roads; a run through the parks trail system to the finish in Picnic Valley.

    Become a part of triathlon history, join a great sport and good people and join us at any of the three LA Tri-Series events.

    Event details and schedule

    Check in will begin at 6:30 am at Bonelli Park.  There is plenty of parking inside the park (parking fees apply) or at the Park & Ride on Via Verde next to the 57 freeway.   Arrive early to rack your bike and check out the transition and swim courses.   

    Remember your bike helmet and bike bottles for water

    All Waivers must be signed prior to entry of the transition area.

    This is a USAT Sanctioned Event

For the love of all that is good and moisture wicking...

Though we try to be accurate and on top of things... Race details can change when we aren't lookin. And once in a while we simply make a mistake.

ALWAYS visit the race's website for the most complete and accurate race information.

Listing Status

  • Added to our Directory
    Mar 17, 2011
  • Last Updated in our Directory
    Dec 31, 2023
  • Appears in Directories
  • This event has concluded
    We hope to update it for 2025

Updates, Options, Corrections, or Problems

Run-Time: Saved Race

  • A Saved Race is one that has been added to your personal directory. You can organized races in lists, and add comments for your own personal reminders and information.
  • You must Create an Account and Log In to save races to your own personal directory.
  • Learn more about Saved Races

Claimed Race