Nov
2
Sunday

Cal Tri Newport Dunes

Registration

The 2025 Optimism Cal Tri Newport Dunes, held at Newport Dunes Waterfront Resort & Marina in Newport Beach, California, is the longest-running triathlon at the same location since 1978. This event serves as the Cal Tri Events National Championship, attracting 1,500 to 2,000 participants. It offers 12 race options including six Olympic distance events (triathlon, run-bike-run, swim-bike, swim-run, 1640-yard swim, and 10K run) and six sprint distance events (triathlon, run-bike-run, swim-bike, swim-run, 400-yard swim, and 5K run).

The course features wetsuit-legal water averaging 65°F and mild air temperatures. The venue is near John Wayne Airport and local attractions like Disneyland and Balboa Island, providing a vibrant and family-friendly atmosphere. Visit the organization's website for the most recent information.

United States California Newport Beach
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 Swim (400 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)

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