California
California Triathlon Calendar 2026-2027
Monthly updates for California
Get new running races (and updates) in your inbox every month.
Explore the best triathlons in California for 2026-2027! Our updated list features 68 exciting races across the region. Find your next race in California below and join the running community at these great events!
October 2026
A trail duathlon at Lake Hodges combining a 10k run, 22k bike and 5k run around Piedras Pintadas Trailhead; cupless aid stations, chip timing, finisher shirt and wooden medal, and awards for individual and team categories.
This Bakersfield event offers a full multisport weekend at Lake Evans. Choose from triathlon, aquabike, duathlon, or standalone 5k/10k runs. All finishers get a medal, shirt, and meal in a setting with robust safety support.
Experience a premier multisport event at Dockweiler State Beach featuring 18 different race options. Choose from Olympic, Sprint, or Youth distances across triathlon, duathlon, swimming, and running along the scenic California coast.
Join a community movement for safer streets at this multi-sport event in Valencia. Choose from a 5K, 10K, or a family-friendly 1K run, or take on a cycling route ranging from 12 to 62 miles. The day includes an expo, costume awards, and support for a..
November 2026
The Morro Bay Triathlon offers Olympic and Sprint distances with kayak and SUP options. It takes place along the coast of Morro Bay, California. Relay teams can also participate in this 15th annual event.
Experience the world's longest running triathlon at the Newport Dunes Waterfront Resort. Choose from twelve different race formats including triathlon, duathlon, and swimming across Olympic and Sprint distances.
Experience a classic Olympic distance triathlon in Long Beach featuring a 1.5k swim, 40k bike, and 10k run. Participants receive premium gear, professional timing, and a finisher medal along the scenic CA coast.
December 2026
Race through the Coachella Valley at IRONMAN 70.3 La Quinta. This December triathlon features a lake swim, a fast bike course including a race track lap, and a flat run through palm tree lined golf courses.