Triathlon Calendar United States 2025-2026

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Explore the best triathlons in the United States for 2025-2026! Our updated list features 617 exciting races across the country. Find your next race in the United States below and join the running community at these great events!

June 2025
The Dayton Triathlon & Multisport Festival, held at Buck Creek State Park Beach in Springfield, Ohio, offers a variety of events suitable for all ages and skill levels. Participants can choose from be..
The Pleasant Prairie Cup Triathlon is a competitive event scheduled for June 1, 2025, in Pleasant Prairie, Wisconsin. This triathlon features various races tailored for young athletes, including Junio..
The Eddie Ferrell Music City Triathlon, taking place in Nashville, TN, features a variety of events including individual and relay options for both Sprint and Olympic triathlons, as well as aquabike a..
The Indian River Networks 39th Annual PineappleMan Triathlon/Duathlon is set to take place in Melbourne Beach, Florida. This historic event, established in 1985, is recognized as the oldest USAT sanct..
The Lake Mills Triathlon is an exciting event that is part of the Wisconsin Triathlon Series, taking place in Lake Mills, Wisconsin. This annual triathlon features a sprint distance course, including..
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 Fort DeSoto Triathlon Series is a popular multi-sport event held at Fort DeSoto Park in St. Petersburg, Florida. The series features multiple races, including Sprint Triathlon, Sprint Duathlon, In..
The Reston Sprint Triathlon is an annual event held on the first Sunday in June, with the next race scheduled for June 1, 2025. Participants can compete in a 400-meter swim in Lake Newport, followed b..
The Pigman Triathlon, Duathlon, and Open Water Swim is a popular multi-sport event taking place in Palo, Iowa. Scheduled for June 1, 2025, it features a variety of competitions including Sprint and Ol..
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 Safe Fun-Fit Endurance Fest is an exciting multi-day running and biking event taking place in Corpus Christi, Texas, from June 6 to June 8, 2025. Participants can choose from a variety of races, i..
The Best in the West Triathlon Festival is a premier athletic event taking place at Foster Reservoir in Oregon. Scheduled for June 7-8, 2025, it features a variety of races including Half-Iron, Olympi..
The Island Lake Triathlon, Duathlon, and Aquabike, organized by Epic Races, is set to take place in Brighton, Michigan, on June 7, 2025. This event features a variety of competitions, including Olympi..
Trinona is a scenic multi-sport event taking place in Winona, Minnesota, featuring a variety of races including Olympic and Sprint distance triathlons, Duathlons, and Aquabike events. Participants can..
The Treasure Valley Triathlon is a community-focused event taking place in Boise, Idaho, on June 7, 2025. This circuit-style triathlon features a closed course along the scenic Boise River, making it..
The Tri-Shark Classic is a premier triathlon and duathlon event taking place in Hudson, Illinois. Scheduled for June 7, 2025, the event features a variety of competitions, including a triathlon, duath..
The Great Escape Triathlon, taking place on June 7-8, 2025, in Jefferson City, Missouri, offers a variety of events suitable for all ages and skill levels. Participants can choose from the Super Sprin..
The Tri the Parks - Lake Lanier Rowing Park Sprint is a multi-sport event taking place in Gainesville, GA, featuring a Sprint Triathlon, Duathlon, and Aquabike. Participants can choose from various ra..
The Grand Rapids Triathlon, taking place on June 7-8, 2025, in Ada, MI, is a premier two-day event that caters to athletes of all skill levels. Recognized as one of the Top 5 Best Triathlons for Begin..
The Hueston Woods Duathlon is an exciting outdoor event taking place at Hueston Woods State Park in College Corner, Ohio. Participants can enjoy a challenging course that includes a 5K trail run, a 12..