Triathlons in California, United States
Find triathlons in California, United States. Compare 7 upcoming events by date and location. Open a race guide for the course, recorded editions and official entry information where available.
Events to explore include Cal Tri Newport Dunes Triathlon, IRONMAN 70.3 La Quinta and IRONMAN 70.3 Oceanside.
10 listed events · 7 with upcoming dates
Upcoming triathlons
7 matching events, earliest date first. Entry availability is shown separately.
Cal Tri Newport Dunes Triathlon
USANewport Beach, California
Cal Tri Newport Dunes Triathlon in Newport Beach, United States.
· Olympic / Sprint
Race details, entry and past editions →Entry information ↗IRONMAN 70.3 La Quinta
USALa Quinta, California
Official IRONMAN 70.3 middle-distance triathlon in La Quinta.
· 70.3
Race details, entry and past editions →Entry information ↗IRONMAN 70.3 Oceanside
USAOceanside, California
Official IRONMAN 70.3 middle-distance triathlon in Oceanside.
· 70.3 · Entry closed
Race details, entry and past editions →Cal Tri Lake Perris Triathlon
USAPerris, California
Cal Tri Lake Perris Triathlon in Perris, United States.
· Olympic / Sprint
Race details, entry and past editions →Entry information ↗Cal Tri Ventura Triathlon
USAVentura, California
Cal Tri Ventura Triathlon in Ventura, United States.
· Olympic / Sprint
Race details, entry and past editions →Entry information ↗Cal Tri Castaic Lake Triathlon
USACastaic, California
Cal Tri Castaic Lake Triathlon in Castaic, United States.
· Olympic / Sprint
Race details, entry and past editions →Entry information ↗Cal Tri La Crema Triathlon
USAGuerneville, California
Cal Tri La Crema Triathlon in Guerneville, United States.
· Olympic / Sprint
Race details, entry and past editions →Entry information ↗Race archive
Past races and previous editions
Looking back at a race? Browse the guides below for recorded editions. This section also includes events awaiting a new date and cancelled editions. Previous editions of races in the upcoming calendar are available through their race guides above.
Cal Tri Los Angeles Triathlon
USAPlaya Del Rey, California
Cal Tri Los Angeles Triathlon in Playa Del Rey, United States.
Next date not listed
Race guide and recorded editions →IRONMAN 70.3 Santa Cruz
USASanta Cruz, California
Official IRONMAN 70.3 middle-distance triathlon in Santa Cruz.
Next date not listed
Race guide and recorded editions →Wildflower Triathlon
USALake San Antonio, California
Long-course triathlon at Lake San Antonio, California.
Next date not listed
Race guide and recorded editions →Choosing a race in California
The unfiltered upcoming calendar includes events in Castaic (1), Guerneville (1), La Quinta (1). Use the town filter to compare locations, then check the race guide for the start venue and organiser’s travel information.
Questions about triathlons in California
Which triathlons are coming up in California, United States?
Cal Tri Newport Dunes Triathlon is listed for 1 November 2026. IRONMAN 70.3 La Quinta is listed for 6 December 2026. IRONMAN 70.3 Oceanside is listed for 3 April 2027 (entry closed). Check the race guide and organiser’s latest information before making plans.
Where can I find race entry details for California, United States?
Follow the link from the race guide to the organiser or entry provider, where one is available. Check the entry deadline, eligibility and current availability there. A listed race date does not necessarily mean entries are still open.
Why has a race moved out of the upcoming calendar?
Once its listed dates have passed, a race moves to the past-editions view unless another upcoming edition is recorded. Cancelled events also leave the upcoming list. The race guide stays available, and the event returns when a new date is added.