Triathlon Calendar United States 2025-2026

Treasure Valley Triathlon

Boise, Idaho

Triathlon

The Treasure Valley Triathlon is a community-focused event taking place in Boise, Idaho, featuring a circuit-style triathlon on a closed course along the scenic Boise River. Scheduled for June 7, 2025..

Tri-Shark Classic

Hudson, Illinois

Triathlon

The Tri-Shark Classic is a premier triathlon and duathlon event held in Hudson, Illinois, featuring a flat and fast course through Comlara Park. Scheduled for June 7, 2025, the event includes various..

7-8

Sa - Su

The Great Escape Triathlon

Wardsville, Missouri

Triathlon

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..

Tri the Parks - Lake Lanier Rowing Park Sprint

Gainesville, Georgia

Triathlon

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..

7-8

Sa - Su

Grand Rapids Triathlon

Ada Township, Michigan

Triathlon

The Grand Rapids Triathlon, taking place over two days in June 2025, offers a variety of events suitable for athletes of all skill levels. Recognized as one of the Top 5 Best Triathlons for Beginners,..

Hueston Woods Duathlon

College Corner, Ohio

Duathlon

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..

Innsbrook Triathlon

Wright City, Missouri

Triathlon

The Innsbrook Triathlon, set to take place at the scenic Innsbrook Resort in Wright City, Missouri, features a variety of events including Sprint and Olympic individual triathlons, aquabike options, a..

Napoleon Rotary Triathlon

Napoleon, Ohio

Triathlon

The 16th Annual Napoleon Rotary Triathlon, presented by the Henry County Hospital, is set to take place in Napoleon, Ohio. This exciting event features multiple competitions, including a Triathlon and..

Dragon Fly Triathlon

Sardis, Mississippi

Triathlon

The Dragon Fly Triathlon & AquaBike is a premier sporting event taking place in Sardis, Mississippi, featuring both Sprint and Olympic distances. Participants can choose from various categories, inclu..

Mighty Montauk Triathlon

Montauk, New York

Triathlon

The Robert J. Aaron Memorial Mighty Montauk Triathlon is a celebrated annual event taking place in Montauk, NY, known for its scenic courses and community spirit. Established in 1982, the triathlon fe..

Coolest Ride and Tie and Equathon

Cool, California

Multisport

The Coolest Ride and Tie and Equathon, scheduled for June 7, 2025, in Cool, California, offers participants a unique endurance experience through scenic trails at Auburn State Recreational Area. The e..

Team Rocket Heel & Crank Duathlon

Huntsville, Alabama

Duathlon

The Team Rocket Heel & Crank Duathlon is an exciting athletic event scheduled for June 7, 2025, in Huntsville, Alabama. Participants can choose from various categories, including Individual, Individua..

Badin Lake Triathlon

Badin, North Carolina

Triathlon

The Badin Lake Triathlon is a vibrant sprint triathlon event held in Badin, North Carolina, designed for participants of all fitness levels. The race features a 750-yard open water swim in Badin Lake,..

MAC Triathlon

Mitchell, South Dakota

Triathlon

The MAC Triathlon is set to take place at the Mitchell Aquatic Center in Mitchell, South Dakota, on June 7, 2025. This exciting sprint triathlon features a 500-meter wave swim, a 14-mile bike ride, an..

Cal Tri DC

Marbury, Maryland

Triathlon

The 2025 Cal Tri DC event, scheduled for June 8, 2025, takes place at Sweden Point Marina in Marbury, Maryland, just 30 miles from Washington, D.C. This multi-sport event features a variety of race op..

Escape the Cape Triathlon

Lower Township, New Jersey

Triathlon

The DeSatnick Real Estate Escape the Cape Triathlon is a premier triathlon event held in Lower Township, NJ, known for its unique start with a jump off the Cape May-Lewes Ferry. Scheduled for June 8,..

Spring Classic Du

Lake Elmo, Minnesota

Duathlon

The Oakdale Spring Classic Du is a welcoming duathlon event held at the scenic Lake Elmo Park Reserve, ideal for both novice and experienced athletes. Participants can choose between a traditional dua..

Ironman 70.3 des Moines

Des Moines, Iowa

Triathlon

The IRONMAN 70.3 Des Moines is a premier triathlon event set in the vibrant city of Des Moines, Iowa. Participants will experience a scenic swim in Gray’s Lake, followed by a flat bike course through..

Ironman 70.3 Eagleman

Cambridge, Maryland

Triathlon

The IRONMAN 70.3 Eagleman is a renowned triathlon event held in Cambridge, Maryland, featuring a 1.2-mile swim in the Choptank River, a 56-mile flat bike course through the scenic Blackwater National..