Cal Tri Newport Dunes
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2026 Optimism Cal Tri Newport Dunes : Newport Beach, CA
The 2026 Optimism Cal Tri Newport Dunes takes place on November 1, 2026 at Newport Dunes Waterfront Resort & Marina in Newport Beach, California. The event originated in 1978 as the Human Race Triathlon and is described as the longest running triathlon operating from the same location. It serves as the Cal Tri Events National Championship race with typical registration in the 1500 to 2000 range.
The program offers twelve event options divided into Olympic and Sprint distances. Olympic events include triathlon, RunBikeRun, SwimBike, SwimRun, a 1640 yard swim, and a 10K run. Sprint events include triathlon, RunBikeRun, SwimBike, SwimRun, a 400 yard swim, and a 5K run. Two RunBikeRun formats list specific distances: Sprint RunBikeRun is 5 km run, 13 km bike, 5 km run; Olympic RunBikeRun is 5 km run, 39 km bike, 10 km run.
Average water temperature is reported at about 65 F and wetsuits are legal. The venue notes nearby attractions such as Disneyland Park, Disney California Adventure Park, and the Balboa Island Ferry. John Wayne Airport (SNA) is identified as the closest airport, approximately four miles from the venue. Visit the organization's website for the most recent information.
