United States
Nov
2
Sunday
Cal Tri Newport Dunes
The 2025 Optimism Cal Tri Newport Dunes is a premier triathlon event taking place at the Newport Dunes Waterfront Resort & Marina. Celebrated as the longest-running triathlon in the world at the same location, this event features a variety of competitions, including Sprint and Olympic triathlons, RunBikeRun, SwimBike, SwimRun, and various distance swims and runs. With an expected registration of 1500-2000 participants, the event caters to athletes of all levels, including youth.
The venue is conveniently located near attractions like Disneyland, making it an ideal destination for both competitors and their families. Visit the organization's website for the most recent information.
Always double-check with the organizer's website – things can change, and we might have sprinted past a few details!
10 km
10k
5 km
Olympic Swim (1640 Yards)
Sprint Triathlon
Sprint Swimrun
Sprint Swimbike
Sprint Runbikerun (5km Run, 13km Bike, 5km Run)
Olympic Triathlon
Olympic Swimrun
Olympic Swimbike
Olympic Runbikerun (5km Run, 39km Bike, 10km Run)
Sprint Swim (400 Yards)
