2026 Optimism Cal Tri Newport Dunes - 11.1.26

Sun, Nov 1, 2026, 7:20 AM PST

Location: Newport Beach, CA; Newport Dunes Waterfront Resort & Marina - (Parking 10 Dollars), 1131 Back Bay Dr, 92660
Type: TRIATHLON

At a glance

Join the Cal Tri Events National Championship, a historic triathlon offering diverse distances and a competitive field in Newport Beach.

Competitive

Great for: runners who like a competitive edge, runners training for a serious effort

The 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
Longest running triathlon (same location)
12 event options (Olympic & Sprint)
Wetsuit legal water (avg 65 F)

Auto-drafted from the public listing — confirm details on the official event page before signing up.

Distances & registration

13 options

Registration for all distances is through the official signup link above.

0.93 Miles
Sun, Nov 1, 7:20 AM PST · From $26.29
Opens Nov 4, 2025, 7:00 PM PST · Closes Nov 6, 2025, 6:59 PM PST
3 Miles
Sun, Nov 1, 7:00 AM PST · From $26.29
Opens Nov 4, 2025, 7:00 PM PST · Closes Nov 6, 2025, 6:59 PM PST
6 Miles
Sun, Nov 1, 7:20 AM PST · From $26.29
Opens Nov 4, 2025, 7:00 PM PST · Closes Nov 6, 2025, 6:59 PM PST

+ 10 more options

50.5K
Sun, Nov 1, 7:20 AM PST · From $84.59
Opens Nov 4, 2025, 7:00 PM PST · Closes Nov 6, 2025, 6:59 PM PST
Sprint Triathlon
Sun, Nov 1, 7:00 AM PST · From $84.59
Opens Nov 4, 2025, 7:00 PM PST · Closes Nov 6, 2025, 6:59 PM PST
Sprint RunBikeRun (5km run, 13km bike, 5km run)
Sun, Nov 1, 7:00 AM PST · From $84.59
Opens Nov 4, 2025, 7:00 PM PST · Closes Nov 6, 2025, 6:59 PM PST
Sprint SwimBike
Sun, Nov 1, 7:00 AM PST · From $84.59
Opens Nov 4, 2025, 7:00 PM PST · Closes Nov 6, 2025, 6:59 PM PST
Sprint SwimRun
Sun, Nov 1, 7:00 AM PST · From $84.59
Opens Nov 4, 2025, 7:00 PM PST · Closes Nov 6, 2025, 6:59 PM PST
400 Yards
Sun, Nov 1, 7:00 AM PST · From $26.29
Opens Nov 4, 2025, 7:00 PM PST · Closes Nov 6, 2025, 6:59 PM PST
Olympic RunBikeRun (5km run, 39km bike, 10km run)
Sun, Nov 1, 7:20 AM PST · From $84.59
Opens Nov 4, 2025, 7:00 PM PST · Closes Nov 6, 2025, 6:59 PM PST
Olympic SwimBike
Sun, Nov 1, 7:20 AM PST · From $84.59
Opens Nov 4, 2025, 7:00 PM PST · Closes Nov 6, 2025, 6:59 PM PST
Olympic SwimRun
Sun, Nov 1, 7:20 AM PST · From $84.59
Opens Nov 4, 2025, 7:00 PM PST · Closes Nov 6, 2025, 6:59 PM PST
Sponsor - 10x10 Tent
Sun, Nov 1, 7:00 AM PST · From $788.50
Opens Nov 4, 2025, 7:00 PM PST · Closes Oct 31, 2026, 6:59 PM PDT

Vibe Check

Serious Test

Based on terrain, weather, and distance data.

The course

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% CALTRI2025 discount code at blueseventy. Note: Fusion wetsuits not eligible for discount.

2026 Optimism Cal Tri Newport Dunes - 11.1.26

At a glance

Distances & registration

Vibe Check

The course

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