California
California Triathlon Calendar 2025-2026
Explore the best triathlons in California for 2025-2026! Our updated list features 35 exciting races across the region. Find your next race in California below and join the running community at these great events!
March 2025
The Rocky Hill Triathlon, taking place in Exeter, California, is a popular annual event that features a challenging course set against the scenic backdrop of the Sierra Nevada foothills. Participants..
The Pi(e) Day Du is an exciting duathlon event taking place at Anderson Lake Park in Morgan Hill, California. Scheduled for March 16, 2025, participants can choose from various race formats, including..
April 2025
The IRONMAN 70.3 Oceanside is a premier triathlon event held in Oceanside, California, featuring a stunning swim in the Pacific Ocean, a fast bike course along the scenic coastline, and a picturesque..
The 2025 Cal Tri Lake Perris event, scheduled for April 6, 2025, offers a diverse range of athletic competitions, including Sprint and Olympic triathlons, various run-bike-run formats, and youth event..
The Millerton Lake Triathlon, 5k & 10k is a multi-sport event taking place at Millerton Lake in Friant, California. Scheduled for April 13, 2025, it features a variety of races including Super Sprint,..
The Orange County International Triathlon, scheduled for April 27, 2025, in Mission Viejo, California, features a variety of events catering to athletes of all levels. Participants can choose from Oly..
The Grapes of Wrath Triathlon, 5k & 10k is a vibrant multi-sport event taking place in Delano, California, featuring a variety of races including Sprint and Olympic Triathlons, Duathlons, Aquathlons,..
May 2025
Wildflower is a renowned multi-sport event held in Bradley, California, celebrated for its vibrant festival atmosphere and challenging courses. It features a variety of competitions, including triathl..
The 2025 Cal Tri Ventura is a multi-sport event scheduled for May 4, 2025, in Ventura, California. Participants can choose from a variety of events, including Sprint and Olympic distance triathlons, R..
The Youth Triathlon Race Simulation is an engaging event designed for participants aged 6 to 14, taking place at the Columbia Swim Center in Sunnyvale, CA. This event focuses on short distances for sw..
June 2025
The 2025 Escape from Alcatraz Triathlon, organized by Semper Fi & America's Fund, is set to take place in San Francisco, attracting triathletes from around the world. This iconic event features a chal..
The Cupertino Splash and Dash is an exciting aquathon event scheduled for June 5, 2025, in Cupertino, California. Participants can engage in a 1.5 km swim followed by a 5 km run, making it a perfect o..
The Coolest Ride and Tie and Equathon is an exciting outdoor event taking place in the scenic Auburn State Recreational Area, Cool, CA. Participants can engage in two main activities: the Ride and Tie..
The VI TRI is an exciting triathlon event taking place in Visalia, California, featuring a variety of competitions suitable for both beginners and experienced athletes. Participants can choose from ev..
The 2025 Cal Tri Castaic Lake event, scheduled for June 14, 2025, offers a variety of competitive options for athletes of all ages and skill levels. Participants can choose from multiple events, inclu..
The Black Butte Triathlon is set to take place on June 14, 2025, in Corning, California. This exciting event features three race options: an Olympic Distance Triathlon, a Sprint Distance Triathlon, an..
The 2025 La Crema Cal Tri Sonoma is a multi-sport event taking place in Guerneville, California, featuring a variety of races including Sprint and Olympic triathlons, SwimBike events, and a 5K run. Pa..
The 2024 Wolfpack Super Sprint Aquathlon Race, sanctioned by USA Triathlon, is set to take place in San Jose, California. This exciting event features a series of youth aquathlon races for various age..
XTERRA Tahoe City is an exciting outdoor sports event scheduled for June 28, 2025, in Tahoe City, United States. As part of the XTERRA World Tour, it features a range of races, including off-road tria..
July 2025
The Great American Triathlon, taking place in Rancho Cordova, CA, is a premier outdoor sporting event that celebrates its 5th annual edition on July 19, 2025. This unique triathlon features a challeng..
