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 45 exciting races across the region. Find your next race in California below and join the running community at these great events!
July 2026
Join the Great American Triathlon, an annual no swim race along Sacramento's American River Parkway that blends running, biking and paddling into one exhilarating day. Perfect for racers and volunteers seeking a scenic summer challenge.
Join Dirty Whiskeytown Tri, a two day off road tri at Brandy Creek Marina that raises funds for NorCal Special Olympics and celebrates community and inclusion. Races for kids, adults and special needs athletes plus a vendor expo.
Challenge yourself at the Long Beach Legacy Triathlon on July 19, 2026, with SuperSprint, Sprint and Olympic distances plus relay and corporate entries along scenic waterfront courses. Celebrate at the post race expo, grab a finisher medal and suppor..
Take on the Crescent City Triathlon, a sprint with a pool swim, oceanfront bike and a run by Beach Front Park and the harbor in Crescent City California. Kid races and relays welcome for all abilities.
Race the Goleta Beach Triathlon on Sunday, July 26, 2026 at scenic Goleta Beach Park with sprint, parent and child, and aquabike options for all levels. Enjoy a calm ocean cove swim, coastal bike paths toward Santa Barbara, and a spectator friendly t..
Challenge yourself at the Solana Beach Triathlon, Duathlon or 5K on July 26, 2026, featuring a surf entry ocean swim and lifeguard supported course along beautiful Solana Beach. Proceeds support Life Sports Foundation for foster and at risk youth.
August 2026
Join the Hermosa Beach Triathlon on August 9 2026 for an entry level challenge featuring an open water swim, scenic coastal bike and a beach run along the Pacific shoreline. Spectator friendly with Pier Avenue nearby for food and post race ocean acce..
Coastal Santa Cruz triathlon with sprint and Olympic distances plus aquabike, duathlon, aquathlon, super sprint and relays. Sheltered swim and flat courses promise fast racing and a Family and Friends noncompetitive wave for all ages.
Take on flat, fast courses along San Diego Bay at Chula Vista Bayside Park with race options for every level, from itsy bitsy kids events to the full international tri. Enjoy an onsite beer and margarita garden and coastal views at this lively Series..
Take on Millerton Madness at scenic Millerton Lake with a Super Sprint triathlon combining swim bike and run. Team relay, 5k and virtual entries add flexibility while post race meal, medal and shirt await.
Compete at the Sandman Tri in Aptos on August 23, 2026 with triathlon, duathlon, or team options and support local state lifeguards. Enjoy seaside racing while funding Junior Lifeguard programs and scholarships.
Enjoy a scenic multisport day at Santa Barbara East Beach with ocean swims, a challenging bike near the Santa Ynez mountains and a beachfront run. Celebrate at the post race beach festival with music, food and a lively atmosphere.
September 2026
Race a scenic sprint tri at Lake Siskiyou in Mount Shasta on Labor Day weekend, with a short swim, 16 mile bike and 3.2 mile run. Open to individuals, relays and duathletes, the event supports Dunsmuir Rotary and local kids.
Swim in San Diego Bay, bike through Point Loma and run waterfront trails at Liberty Station in this festival of distances from sprint to Olympic triathlon plus a 5K. Finish with a lively post race celebration and on site amenities.
The Shaver Lake Mile High Triathlon moves to scenic Lake Evans after a site change due to nearby fires. Choose from Sprint and Olympic triathlons, aquabike, duathlon, relays, 5k and 10k runs and virtual options for every level.
A short-distance triathlon in Santa Rosa on September 27, 2026, featuring Sprint and Mini Sprint formats with adult, youth, and relay categories. The untimed event starts with a pool swim and uses bike and run courses along the Santa Rosa Creek Trail..
October 2026
The XTERRA WETSUITS Mission Bay Triathlon in San Diego is event 3 of the San Diego Triathlon Series and host of the 2026 USA Triathlon State Championships, offering Olympic and sprint triathlons, multisport races, youth events, and a Mission Bay 5K.
IRONMAN California comes to Sacramento on Oct 18, 2026 with a flat, fast course and a downriver swim. The race includes a 2.4 mile swim, 112 mile bike and 26.2 mile run finishing at the State Capitol with on site bike rentals.
Take on scenic trails around Lake Hodges in this Run Bike Run duathlon on October 18, 2026, with chip timing and handcrafted wooden finisher medals. Open to ages 10 to 80, it offers rugged singletrack, great views, and a fun community vibe.
Jump into race day at scenic Lake Evans with triathlon, aquabike, duathlon and 5K and 10K run options plus virtual entries and relays for every level. Expect finisher medals, shirts, food, music and team prizes for a fun community day.