2026 Optimism Cal Tri Newport Dunes - 11.1.26
Sun, Nov 1, 2026, 2:00 AM PST
- Type
- Run
Sign up and verify details on the organizer's official page.
Race feel
Join the Cal Tri Events National Championship, a historic triathlon offering diverse distances and a competitive field in Newport Beach.
- Competitive
CompetitiveThe Optimism Cal Tri Newport Dunes is a historic event, recognized as the longest-running triathlon globally from its original location since 1978. Serving as the Cal Tri Events National Championship Race, it draws a substantial field of 1500-2000 participants. Runners can choose from 12 event options across Olympic and Sprint distances, including triathlon, run-bike-run, swim-bike, swim-run, and standalone swim or run races. This event offers a well-established and competitive experience in Newport Beach, California.
What to expect
- Participate in the Cal Tri Events National Championship with 12 event options.
- Choose from Olympic or Sprint distances, including triathlon, run-bike-run, and more.
- Expect average water temperatures around 65 F, making it wetsuit legal.
Standout details
- Cal Tri Events National Championship Race
From the organizer
2026 Optimism Cal Tri Newport Dunes - 11.1.26. 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. Balboa Island Ferry. Newport Beach.
AIRPORT. John Wayne (SNA)
AIR TEMPERATURE (AVG). 60 F / 73 F
WATER TEMPERATURE (AVG). 65 F. Wetsuit legal. Use the 20% 2026CALTRI discount code at blueseventy. Note: Fusion wetsuits not eligible for discount.
