2025 Optimism Cal Tri Newport Dunes - 11.2.25

  • Date Sun 2nd November 2025
  • Time 7:00AM PST
  • Location Newport Beach, California
  • Price $47.49 - $526.00
  • Races 13 races
  • Distances Sprint, Ultra, 5km, 10km, Olympic

Event summary

Get ready for an exhilarating day at the 2025 Optimism Cal Tri Newport Dunes on Sunday, November 2, 2025! Set against the stunning backdrop of Newport Beach in Orange County, this iconic event boasts a rich history as the longest-running triathlon in the world, having started in 1978. Athletes from around the nation will gather to participate in a variety of race options, including 6 Olympic distance events and 6 Sprint distance events. Whether you choose the Triathlon, RunBikeRun, SwimBike, or SwimRun, there’s something for everyone, with distances ranging from a 1640-yard swim and 10K run to a 400-yard swim and 5K run.

As a National Championship Race, the Cal Tri Newport Dunes is expected to draw a vibrant crowd of 1500-2000 participants, creating an electric atmosphere. With average air temperatures of 60Β°F to 73Β°F and water temperatures around 65Β°F, it’s the perfect setting for both seasoned triathletes and newcomers alike. Don't miss out on this incredible opportunity to challenge yourself and enjoy the beautiful coastal scenery of Newport Beach! Make sure to plan your trip early and check out nearby attractions like Disneyland Park and

Organiser's Description

2025 OPTIMISM CAL TRI NEWPORT DUNES - 11.2.25. Started in 1978 as the Human Race Triathlon, Cal Tri Newport Dunes is the longest running triathlon in the world operating from the same location. Also started in 1978 was the Ironman World Championship Triathlon Oahu but it moved to Kailua-Kona, Hawaii in 1981. This serves as the Cal Tri Events National Championship Race with registration in the 1500-2000 range.

12 EVENT OPTIONS. 6 Olympic distance events (Triathlon, RunBikeRun, SwimBike, SwimRun, 1640 Yard Swim & 10K Run) and 6 Sprint distance events (Triathlon, RunBikeRun, SwimBike, SwimRun, 400 yard Swim & 5K Run). Triathlon = swim + bike + run. Typically, the swim and run distances are standard but the bike distance varies from race to race. Check out the course maps for more detailed information.

TO DO. Disneyland Park & California Adventure Park. [https://disneyland.disney.go.com/] Balboa Island Ferry. [https://www.balboapark.org/] Newport Beach. [https://www.visitnewportbeach.com/]

AIRPORT. John Wayne (SNA) [https://www.ocair.com/]

AIR TEMPERATURE (AVG). 60 F / 73 F [https://weatherspark.com/d/1878/11/6/Average-Weather-on-November-6-in-Newport-Beach-California-United-States]

WATER TEMPERATURE (AVG). 65 F. Wetsuit legal. Use the 20% CALTRI2025 discount code at blueseventy. Note: Fusion wetsuits not eligible for discount.

Races

  • Sprint Triathlon

    Incl. $10.23 Fee & T-Shirt

    Sun 2nd November 2025 (7:00AM PST)

    $164.09

  • Olympic Triathlon

    Incl. $10.23 Fee & T-Shirt

    Sun 2nd November 2025 (7:20AM PST)

    $164.09

  • Sprint RunBikeRun (5km Run, 13km Bike, 5km Run)

    Incl. $10.23 Fee & T-Shirt

    Sun 2nd November 2025 (7:00AM PST)

    $164.09

  • Sprint SwimBike

    Incl. $10.23 Fee & T-Shirt

    Sun 2nd November 2025 (7:00AM PST)

    $164.09

    400 yard swim + 9 mile bike
  • Sprint SwimRun

    Incl. $10.23 Fee & T-Shirt

    Sun 2nd November 2025 (7:00AM PST)

    $164.09

    400 yard swim + 5K run
  • Sprint Swim (400 Yards)

    Incl. $3.63 Fee & T-Shirt

    Sun 2nd November 2025 (7:00AM PST)

    $47.49

  • 5k

    Incl. $3.63 Fee & T-Shirt

    Sun 2nd November 2025 (7:00AM PST)

    $47.49

  • Olympic RunBikeRun (5km Run, 39km Bike, 10km Run)

    Incl. $10.23 Fee & T-Shirt

    Sun 2nd November 2025 (7:20AM PST)

    $164.09

  • Olympic SwimBike

    Incl. $10.23 Fee & T-Shirt

    Sun 2nd November 2025 (7:20AM PST)

    $164.09

    .93 mile swim + 24.8 mile bike
  • Olympic SwimRun

    Incl. $10.23 Fee & T-Shirt

    Sun 2nd November 2025 (7:20AM PST)

    $164.09

    .93 mile swim + 10K run
  • Olympic Swim (1640 Yards)

    Incl. $3.63 Fee & T-Shirt

    Sun 2nd November 2025 (7:20AM PST)

    $47.49

  • 10k

    Incl. $3.63 Fee & T-Shirt

    Sun 2nd November 2025 (7:20AM PST)

    $47.49

  • Sponsor - 10x10 Tent

    Incl. $26.00 Fee

    Sun 2nd November 2025 (7:00AM PST)

    $526.00

    10x10 Vendor Tent (other tent sizes available upon request) 1 Preferred Parking Spot PA Announcements Throughout The Event

Reviews

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Location

Newport Dunes Waterfront Resort & Marina - (Parking 10 Dollars), 1131 Back Bay Dr, Newport Beach, 92660, CA, United States

Who's In

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Brye Thomas Templet

Melissa Tierney

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Nov 2, 2025

$47.49 - $526.00