Upcoming Triathlons in California

Endurance Grid lists 34 triathlons in California, from November 2026 to October 2027 across 28 cities.

34
Races
28
Cities

Triathlon Races in California

The triathlon race calendar in California is busiest in May, August, and April, with races most often in Long Beach, San Diego, and San Jose.

What a triathlon is

A triathlon is three sports in one race — swim, then bike, then run, back to back, with two timed transitions in between. The sprint distance — a 750m swim, 20K bike, and 5K run — makes the sport more accessible than most people think.

The swim start is exciting and chaotic but finds a rhythm fast; the bike course is usually quiet; the run brings the crowds and the finish line. Beyond fitness, the transitions between disciplines are their own skill.

Frequently Asked Questions

How many triathlons are in California?
Endurance Grid's Race Calendar lists 34 upcoming triathlons in California across 28 cities, from November 2026 to October 2027.
What triathlon distances are offered in California?
Triathlons in California include 70.3, Olympic, and Sprint distances.
When is triathlon season in California?
Triathlon season in California runs spring through fall — the warmer months when open water is race-ready. Of the upcoming triathlons on Endurance Grid's Race Calendar, the most are in May and August.
Which California cities have triathlons?
Triathlons in California are held in Friant, Long Beach, Menlo Park, San Diego, San Jose, Santa Cruz, Castaic, Chula Vista, Delano, and Exeter, plus 18 other cities.

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