California
California Triathlon Calendar 2025-2026
Explore the best triathlons in California for 2025-2026! Our updated list features 29 exciting races across the region. Find your next race in California below and join the running community at these great events!
August 2025
The Courage Triathlon, held annually at Lake Almanor Country Club in Westwood, California, is a unique event supporting child survivors of sex trafficking. The 11th edition, scheduled for August 16, 2..
The Santa Barbara Triathlon & Beach Festival, held in Santa Barbara, California, offers a variety of race options including triathlons, aquabike, duathlon, relay teams, and a 5K beach run. Distances r..
The Millerton Madness Triathlon, held in Friant, California at Millerton Lake's Meadow Campground, is a USAT-sanctioned Super Sprint event ideal for beginners or those tuning up for bigger races. The..
The Mount Shasta Tinman Triathlon, held near Mount Shasta, California, is a popular sprint triathlon featuring a 740-yard swim, 16-mile bike ride, and 3.2-mile run. The event takes place at Lake Siski..
The Bear Valley Triathlon, held in scenic Bear Valley, California, offers a fun and fast course set in the beautiful Sierra region. The event features a 600-yard swim in approximately 70+ degree water..
September 2025
IRONMAN 70.3 Santa Cruz is a scenic triathlon event held in Santa Cruz, California, known for its laid-back "Surf City" beach culture. The race features a 1.2-mile swim in the Pacific Ocean around the..
The Shaver Lake Mile High Triathlon, held at Camp Edison in Shaver Lake, California, is Fresno County's longest-running multisport event. Set in crisp mountain air at altitude, it offers a challenging..
The Albany Community Triathlon, held in Albany, California, is a family-friendly, beginner-friendly "Super Sprint" event designed to promote fitness and community spirit. Taking place at the Albany Aq..
The Pacific Coast Triathlon, held in Laguna Beach, California, is a versatile event welcoming athletes of all ages and skill levels. Set against the scenic backdrop of Crystal Cove, the race offers mu..
The 2025 DJFE Triathlon Race Series takes place in Santa Rosa, California, offering a welcoming and non-competitive environment ideal for all skill levels. The event features multiple race options inc..
October 2025
The Mermaid Triathlon & Duathlon Capitola, held at Capitola Beach, California, is California's longest-running women's triathlon, celebrating its 21st year in 2025. The event features multiple race op..
The Lake Evans Triathlon, held in Bakersfield, California, offers a variety of race options including Super Sprint, Sprint, and Olympic distances, as well as 5k and 10k runs. The event features a flat..
Cal Tri LA is a multisport event held at Dockweiler State Beach in Playa Del Rey, California, known for its relaxed coastal atmosphere. The 2025 race offers a variety of distances including Sprint and..
IRONMAN California is a premier triathlon event held in Sacramento, California, known for its fast and flat course ideal for achieving personal bests. The race features a downriver 2.4-mile swim, accl..
The Lake Hodges Off-Road Duathlon, held at the Piedras Pintadas Trailhead in San Diego, California, is a challenging off-road run-bike-run event covering approximately 23 miles. Participants start wit..
November 2025
The 2025 Optimism Cal Tri Newport Dunes, held at Newport Dunes Waterfront Resort & Marina in Newport Beach, California, is the longest-running triathlon at the same location since 1978. This event ser..
The Morro Bay Triathlon, held annually in Morro Bay, California, offers both Olympic and Sprint distance courses, including unique kayak and stand-up paddleboard (SUP) options. Now in its 14th year, t..
The Fall Classic Olympic Triathlon takes place in Long Beach, California, featuring an Olympic-distance course with a 1.5k swim, 40k bike, and 10k run. The event is held at 5415 E Ocean Blvd, utilizin..
December 2025
IRONMAN 70.3 La Quinta is a premier triathlon event held in La Quinta, California, near Palm Springs. The race features a 1.2-mile swim in the calm, scenic waters of Lake Cahuilla, followed by a flat..
The 39th Annual Tinsel Triathlon, held in Hemet, California, is a well-established reverse sprint pool triathlon ideal for triathletes of all levels. This December event features a 5K run on a scenic,..
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