Costa Mesa
Triathlon Calendar near Costa Mesa 2026-2027
Monthly updates for Costa Mesa
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Explore the top triathlons near Costa Mesa for 2026-2027! We've gathered 8 exciting races in the area. Check out our detailed list below to find your next local race.
July 2026
Coveathlon #3 in Newport Beach on July 30, 2026 features a mix of swim and run events including a combined 1K swim plus 5K run, standalone swim and run distances, and a relay. Registration fees vary by event and awards are given after each race.
August 2026
A multi-format swim and run event in Newport Beach on August 6, 2026 offering 1K swim, 5K and 10K runs, a combined 6K swim+run and a relay option. Entries include a race t-shirt, swim cap, free photos, chip timing and awards after each race.
September 2026
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.
November 2026
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.
March 2027
Experience an early season triathlon in Long Beach featuring a calm bay swim and scenic oceanfront paths. Choose from a 70.4 mile long course or a sprint distance with individual and relay options.
April 2027
A multi-sport festival at Lake Mission Viejo on April 25, 2027 offering Olympic and sprint triathlons, a duathlon, aquabike events, relays, a 5K, mini sprint and kids races. Courses use lake swims, canyon and neighborhood bike routes, and trail runs.
September 2027
Supertri Long Beach on September 19, 2027 features SuperSprint, Sprint and Olympic triathlon distances along the Long Beach waterfront with individual and relay options.