California
California Triathlon Calendar 2026-2027
Monthly updates for California
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Explore the best triathlons in California for 2026-2027! Our updated list features 65 exciting races across the region. Find your next race in California below and join the running community at these great events!
September 2026
A coastal IRONMAN 70.3 in Santa Cruz with a 1.2 mile ocean swim, a 56 mile bike on Highway 1 and a flat half marathon finishing on the beach.
Experience a multisport challenge at Shaver Lake with triathlon, duathlon, and running events held at Camp Edison. Enjoy hilly bike routes and scenic trail runs followed by a tri tip lunch and finisher celebrations.
Experience a scenic multisport event at Crystal Cove State Beach featuring swim legs in the Pacific Ocean and a closed bike course on the Pacific Coast Highway. Choose from triathlon duathlon aquabike or trail run options.
A USARA-sanctioned 12 hour team adventure race in Sausalito combining paddling, mountain biking, and trekking across the Marin Headlands and San Francisco Bay with map-and-compass navigation and a central transition area.
A community triathlon in Albany, CA on 20 September 2026 featuring a Super Sprint main course with individual and 2-3 person relays plus a shorter mini triathlon for kids and adults, all centered at the Albany Aquatic Center and surrounding streets.
A reverse triathlon at Civic Center Park in Apple Valley with a 5K run, 12 mile bike, 150 yard swim, plus a kids tri and a separate 5K run.
Tri to Inspire is a short distance triathlon in Santa Rosa on 09/27/2026 featuring pool swims followed by bike and run courses. It offers sprint, mini sprint, relay and family divisions, with proceeds supporting the Inspiration Sports Foundation.
The Olympic course combines a 1500m rolling swim from Main Beach to Cowell Beach, a 40K bike along West Cliff Drive and Highway 1 to Davenport, and a 10K run that returns along West Cliff Drive and Swanton Boulevard. Transition rules are strict.
October 2026
Multi-day event at McNear’s Beach Park in San Rafael featuring an Olympic triathlon, relay, a kids triathlon, a trail half marathon, and a combined challenge.
An annual multisport event at Mission Bay and Fiesta Island, the 2026 XTERRA Wetsuits Mission Bay Triathlon hosts USA Triathlon State Championships and offers triathlon, duathlon, aquabike, aquathlon, youth races, and a 5K, produced for Life Sports F..
Mudskipper US SoCal Silverwood takes place in Hesperia California on October 11 2026 and features open water swim and swimrun races presented by Canaqua Sports. It is the first Mudskipper event on the US west coast.
A one-day triathlon at Schaal Aquatics Center in Davis, CA offering classic sprint and relay formats on October 11, 2026. Organized by the UC Davis Triathlon Club, events include individual and team options with varied distances and fees.
IRONMAN California in Sacramento features a 2.4 mile downriver swim, a fast 112 mile bike and a 26.2 mile run finishing at the California State Capitol.
A trail Run, Bike, Run at Lake Hodges near San Diego combining a 10k run, a 22k bike and a 5k run. Entries are available for individuals or teams; the event is cupless so participants should bring a personal hydration vessel.
Lake Evans Triathlon on 10/18/2026 in Bakersfield features multiple on-site and virtual race formats from 5K runs to longer multisport courses, with finisher medals, event shirts, a meal, music and a team competition.
Cal Tri LA at Dockweiler State Beach in Playa Del Rey offers 18 event options on October 18, 2026, across Olympic, Sprint, and Youth Sprint formats, including triathlon, duathlon, aqua bike, swim run, and standalone swim and run distances.
A USAT sanctioned triathlon at Lake Berryessa on Oct 24, 2026, offering Open, Sprint, Olympic and Long Course distances plus relay and aquabike options.
November 2026
A coastal beach triathlon in Morro Bay offering Olympic and Sprint distances, with a protected harbor swim or kayak/SUP option, coastal bike on Highway 1, and a beach and boardwalk finish by Morro Rock.
A multisport race day at Newport Dunes offering twelve sprint and Olympic events, held at the same site since 1978 and serving as the Cal Tri Events National Championship.
Two triathlon options in Long Beach on E Ocean Blvd, featuring open-water swims, out-and-back bike courses open to traffic, and stocked aid stations; registration includes timing, a shirt, medal, and post race food.