2026 Optimism Cal Tri Newport Dunes - 11.1.26
2026 Optimism Cal Tri Newport Dunes - 11.1.26 is a triathlon, aquabike, duathlon, running, swimming, and swimrun race on November 1, 2026 in Newport Beach, CA, with entry fees from $43.86 to $153.86.
- Date
- November 1, 2026 (101 days to go)
- Price
- $43.86–$153.86
- Sports
- TriathlonAquabikeDuathlonRunningSwimmingSwimRun
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.
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
71°
Typical Low
58°
Chance of Rain
9%
Based on US Climate Normals data from Newport Beach Harbor, 2 mi from the venue.
Host City
About Newport Beach, CA
Population
84,304
as of 2023
City Elevation
0 ft
Nearest Airport
SNA
John Wayne Orange County International Airport · 4 mi
Time Zone
Pacific Time
From Endurance Grid
A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at 2026 Optimism Cal Tri Newport Dunes - 11.1.26, put it on the calendar, and turn “someday” into a start date.
101
Days to train
- Race
- 2026 Optimism Cal Tri Newport Dunes - 11.1.26
- Date
- November 1, 2026
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From Endurance Grid
About These Sports
This race spans more than one sport — here’s a guide to each, so you can understand what’s involved and decide if it’s the right fit. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
Triathlon
Swim, bike, run — back to back. The sprint distance makes it far more accessible than most people think. Three sports in one race means three movements to train and race day never gets monotonous.
Aquabike
A swim followed by a bike — a triathlon without the run. Sprint and Olympic distances, often alongside a tri at the same venue.
Duathlon
Run, bike, run. The multi-sport format without the swim. Two disciplines, one race — a great bridge between running and triathlon.
Running
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Open Water Swimming
Open water races take place in lakes, rivers, bays, and oceans. Distances can run anywhere from a short 500m swim to 10K marathon events. Just you and the water.
SwimRun
A continuous race alternating open-water swimming and running across a series of segments. Distances, format, and legs vary by event.
Coming Up
More Triathlon races near Newport Beach, CA
Hermosa Beach Triathlon
Sprint · From $188 · 1 Pier Avenue, Hermosa Beach
35 miles away
Pacific Coast Triathlon
Sprint · Olympic · From $50 · 8471 North Coast Highway
5 miles away
2026 Cal Tri LA - 10.18.26
5K · 10K · Sprint · Olympic · 500m · 1500m · From $43.86 · Dockweiler State Beach - Parking Lot 2
40 miles away
Bayshore Sprint and 70.4
Sprint · From $165 · 5411 E Ocean Blvd
17 miles away
Plan your trip
Make it a Racecation
Coming from out of town? There's more to Newport Beach than race day. We'll help you line up nearby lodging, flights, a rental car, and things to do so you can make the most of your racecation.
Plan your trip to Newport BeachFrequently Asked Questions (FAQs)
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2026 Optimism Cal Tri Newport Dunes - 11.1.26
Nov 1, 2026