Triathlon Calendar United States 2025-2026

Fort DeSoto Triathlon Series

St. Petersburg, Florida

Triathlon

The Fort DeSoto Triathlon Series is a popular athletic event held at Fort DeSoto Park in St. Petersburg, Florida. Scheduled for August 24, 2025, the series features multiple race formats, including Sp..

Medford Lakes Colony Sprint Triathlon

Medford Lakes, New Jersey

Triathlon

The DQ 14th Annual Medford Lakes Colony Sprint Triathlon, Duathlon, and Aquabike is set to take place on August 24, 2025. This exciting event features multiple race formats, including a triathlon, dua..

Miamisburg Triathlon

Miamisburg, Ohio

Triathlon

The Miamisburg Triathlon is an exciting multi-sport event scheduled for August 24, 2025, at Riverfront Park in Miamisburg, Ohio. Participants can choose to compete as solo entrants or in 2-person team..

Pemaquid Beach Triathlon

New Harbor, Maine

Triathlon

The Pemaquid Beach Triathlon, scheduled for August 24, 2025, in New Harbor, Maine, is a scenic and community-focused event featuring both individual and relay participation. Athletes will tackle a 400..

Huntersville Triathlon

Huntersville, North Carolina

Triathlon

The Huntersville Sprint Triathlon, held at Huntersville Family Fitness and Aquatics in North Carolina, offers a pool swim triathlon with distances suited for both beginners and experienced athletes ag..

Group Run & Raft

New River Gorge National Park & Preserve, West Virginia

Multisport

The Group Run & Raft event takes place in New River Gorge National Park, West Virginia, offering a unique dual-sport adventure. Participants start with an approximately 11-mile trail run from Fayette..

Friday

Trifest for MS

Bentonville, Arkansas

Triathlon

Trifest for MS is the largest triathlon in Arkansas, held annually in Bentonville at the Melvin Ford Aquatic Center and Northeast Memorial Park Square. This multi-day event features various race dista..

Plutonium Man Triathlon

Richland, Washington

Triathlon

The Plutonium Man Triathlon is set to take place in Richland, Washington, featuring multiple events including the Olympic distance triathlon, sprint triathlon, and various relay team options. Particip..

Bonney Lake Triathlon

Bonney Lake, Washington

Triathlon

The Bonney Lake Triathlon + Duathlon & Aquabike is a premier multisport event held in Bonney Lake, Washington, featuring both Sprint and Olympic distance races. Set against the stunning backdrop of La..

Tomahawk Sprint Triathlon

Loudon, Tennessee

Triathlon

The Tomahawk Sprint and Super Sprint Triathlons is an exciting multi-sport event held in Loudon, TN, featuring various race categories including the Super Sprint Triple, Sprint, Sprint Athena, Sprint..

CassadagaMan Triathlon

Cassadaga, New York

Triathlon

The CassadagaMan Triathlon is an exciting athletic event scheduled for August 30, 2025, in Cassadaga, NY. Participants can choose from various race formats, including a Long Course triathlon featuring..

The Southern Hills Triathlon

Hot Springs, South Dakota

Triathlon

The Southern Hills Triathlon is a premier triathlon event held at Angostura Recreation Area in the scenic Black Hills near Hot Springs, South Dakota. The race features a pristine sand beach swim, a ro..

Rattlesnake Lake Triathlon

North Bend, Washington

Triathlon

The Rattlesnake Lake Triathlon, scheduled for August 31, 2025, takes place in the scenic Snoqualmie Valley, North Bend, Washington. This event features a quarter-mile swim in the brisk waters of Rattl..

Cal Tri Charlottesville

Charlottesville, Virginia

Triathlon

The 2025 Cal Tri Charlottesville is a multi-sport event scheduled for August 31, 2025, in Charlottesville, Virginia. This event features a variety of races, including a Sprint Triathlon, Youth Sprint..

MI Triathlon Championship

Detroit, Michigan

Triathlon

The MI Triathlon / Duathlon Championship is a premier multi-sport event taking place at Belle Isle State Park in Detroit. Scheduled for August 31, 2025, this championship features a variety of races,..

Rotary Club of Katy Triathlon

Katy, Texas

Triathlon

The Rotary Club of Katy Triathlon at Cane Island is a multi-sport event scheduled for August 31, 2025. Participants can choose from various events, including the traditional triathlon, duathlon, aquab..

Mount Shasta Tinman Triathlon

Mount Shasta, California

Triathlon

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..

September 2025

Sep

Monday

Blackland Triathlon

Plano, Texas

Triathlon

The Blackland Triathlon and Blackland Youth Tri is a family-friendly event held annually in Plano, Texas, on Labor Day. The 2025 edition features a variety of races, including a Sprint Triathlon, Duat..

Sep

Friday

Brineman Triathlon

Syracuse, Utah

Triathlon

The Brineman Triathlon, held annually in Syracuse, Utah, is a popular event attracting triathletes from across the region. Now in its 10th year, the race features a spectator-friendly swim at Stillwat..

Sep