Newport Dunes Waterfront Resort & Marina - (Parking 10 Dollars), Newport Beach CA
Sunday, November 2nd, 2025
🏊♂️ 2025 Optimism Cal Tri Newport Dunes
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
- Types of Events: 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 Definition: Triathlon = swim + bike + run.
- Distance Variability: Typically, the swim and run distances are standard, but the bike distance varies from race to race.
- Course Maps: Check out the course maps for more detailed information.
🎢 To Do
- Theme Parks: Disneyland Park &: California Adventure Park.
- Ferry Service: Balboa Island Ferry.
- Local Attractions: Newport Beach.
✈️ Airport
- Closest Airport: John Wayne (SNA)
🌡️ Air Temperature (Avg)
- Temperature Range: 60 F / 73 F
🌊 Water Temperature (Avg)
- Temperature: 65 F.
- Wetsuit Legal: Yes.
- Discount Code: Use the 20% CALTRI discount code at blueseventy
Event Date: 2025-11-02
Location: Newport Dunes Waterfront Resort & Marina - (Parking 10 Dollars), Newport Beach, CA
Registration Link: Register here.
Starting Line Map
Suggested Races
