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 62 exciting races across the region. Find your next race in California below and join the running community at these great events!
June 2026
A day of multi-discipline racing at Castaic Lake on June 20, 2026 featuring Olympic, Sprint and youth sprint swim bike and run formats at Castaic Lake Paradise Cove.
Youth aquathlon in San Jose on June 20, 2026 featuring short run, swim, run races for ages 4 to 17. The event is USA Triathlon sanctioned and part of the 2026 USAT Youth State Series for Northern California.
A weekly series at Goleta Beach Park featuring swims, runs, and swim-run events with RFID chip timing and free parking. Online registration is required for each week.
A multi-event race day in Sonoma County with seven options from sprint to Olympic distances. Courses use Johnson's Beach, River Road and finish through vineyards at La Crema Estate with an optional wine pour for those 21 plus.
A multi-format triathlon on June 28, 2026 in downtown San Diego with swim in the bay, bike around Point Loma, and a waterfront run; sprint, international, aquabike, duathlon, relays, and a 5.6K run.
July 2026
A mixed swim and run event in Newport Beach on July 9, 2026 featuring 1K swims, 5K and 10K runs, combined swim-run races and a relay, with chip timing, race shirts, photos and awards across multiple categories.
Multi-distance triathlon event at Rancho Seco Park with USAT sanctioning for select races, on-site aid stations, transition rules, and series awards plus a raffle for series finishers.
A lake swim, road bike course and dirt trail run at Rancho Seco Park form the TRI for FUN and DU for FUN events, with finisher items, refreshments and age group awards; commemorative shirts are available before July 7th.
Coveathlon #2 in Newport Beach on July 16, 2026 offers swim and run events across multiple distances, including relay options. Registration opens March 25 and includes a race shirt, swim cap, photos and chip timing.
Multi-sport ocean festival at San Clemente Pier featuring lifeguard and junior lifeguard competitions, ocean swims, paddling, surfing and beach runs. One fee covers entry to listed events and includes a commemorative tee and swim cap.
A triathlon in Rancho Cordova on July 18, 2026 featuring a 5.95 mile run, 12.5 mile bike and 6.10 mile paddle. Individual and relay categories are offered and the event supports fundraising for the American River Parkway Foundation.
A multi-distance triathlon in Long Beach, California on July 19, 2026 offering SuperSprint, Sprint and Olympic courses with individual and relay entries. The event supports fundraising for pediatric cancer research at Children’s Hospital Los Angeles.
Folsom Swim Run at Black Miners Bar features short and long courses combining multiple swims and runs. Each participant receives kit items and a post race BBQ, and the long course includes four aid stations with drinks and gels.
A combined supported trail run and full day whitewater raft trip on the South Fork American River in Lotus California. Two 2026 dates are offered and the package includes guides, shuttle, lunch, hat and aid station support.
A sprint triathlon in Crescent City with a 500 yard pool swim, a 12 mile bike along the Pacific, and a 5 km run by Beach Front Park; includes adult, relay, duathlon, and kids' races with age-specific distances.
Triathlon races at Goleta Beach Park feature calm ocean swims in a protected cove and bike and run courses on dedicated paved paths. Event options include a sprint triathlon, a parent and child race, and an aquabike.
Multi-discipline race day in Solana Beach on July 26, 2026 featuring ocean swim, bike along the Pacific Coast Highway and a coastal 5K. Options include triathlon, duathlon, aquabike, aquathlon and a standalone 5K.
Coveathlon #3 in Newport Beach on July 30, 2026 features swim and run events including 1K swim, 5K and 10K runs plus a swim-run relay. Entry options include individual fees and a limited series pass, and awards are presented after each race.
August 2026
Coveathlon #4 in Newport Beach on 8 June 2026 offers 1K swims, 5K and 10K runs, combined swim-run events and relays, with limited series passes and registration from March 25 to June 1.
Tri for Real at Rancho Seco Park on August 8, 2026 features Olympic-distance, Aquabike and Super Sprint options with USAT sanctioning for the Olympic-distance series and Aquabike plus age group series championship prizes.