Triathlon Calendar United States 2025-2026

Ravine Lake Triathlon

Huron, South Dakota

Triathlon

The Ravine Lake Triathlon, held in Huron, South Dakota, is an annual event featuring flat, fast, and scenic courses ideal for both casual athletes and seasoned racers. Participants can choose between..

Matt Mason "Cowboy UP" Triathlon

Smithville, Missouri

Triathlon

The 2025 Matt Mason "Cowboy UP" Triathlon/Duathlon is set to take place at Smithville Lake Crow's Creek Park, honoring the memory of Matt Mason and supporting those who have sacrificed for their count..

Battle of Waterloo Adventure Triathlon

Grass Lake, Michigan

Triathlon

The Battle of Waterloo 10-Stage Adventure Triathlon is a challenging event set in the scenic Waterloo Recreation Area in Grass Lake, Michigan. This triathlon features two options: the full battle, com..

Ironman 70.3 Maine

Augusta, Maine

Triathlon

IRONMAN 70.3 Maine is a celebrated triathlon event held in Augusta, Maine, featuring a scenic and fast swim in the Kennebec River, known as the fastest IRONMAN 70.3 swim course globally in 2023. The r..

Game On Saint Augustine Triathlon

Vilano Beach, Florida

Triathlon

The Game On! Saint Augustine Triathlon is set to take place at Vilano Beach, Florida, featuring a variety of events including Olympic and Sprint distances for triathlons, duathlons, and aquabikes. Par..

Tri-ing for a Cure Triathlon

Dousman, Wisconsin

Triathlon

The Tri-ing for a Cure Triathlon is an annual event held at Ottawa Lake State Park in Dousman, Wisconsin, as part of the Wisconsin Tri Series. This triathlon caters to all levels of athletes, offering..

Smiley Sprint Triathlon

Clemmons, North Carolina

Triathlon

The Smiley Sprint Triathlon is a vibrant event taking place in Clemmons, NC, featuring a 300m swim, a 12-mile bike ride, and a 5K run. This triathlon welcomes participants of all skill levels, includi..

TriKB

Key Biscayne, Florida

Triathlon

TriKB is a dynamic multi-sport event taking place in Key Biscayne, Florida, featuring a variety of competitions including Sprint Triathlon, Sprint Duathlon, International Triathlon, International Aqua..

Key Biscayne Triathlon

Key Biscayne, Florida

Triathlon

The Key Biscayne Triathlon #1 is a popular multi-sport event taking place at Crandon Park in Key Biscayne, Florida. Scheduled for July 27, 2025, it features various race formats including Sprint Triat..

Lake Wilderness Aquathon

Maple Valley, Washington

Aquathlon

The Lake Wilderness Aquathon is a dynamic sports event scheduled for July 27, 2025, in Maple Valley, Washington. This exciting competition features multiple categories, including a Sprint, Super Sprin..

Gillie Girl Triathlon

Camillus, New York

Triathlon

The Gillie Girl Sprint Triathlon is an annual event held in Camillus, NY, designed to encourage women of all skill levels to participate in triathlons. The event features a 1/2 mile swim in Gillie Lak..

Lake Rebecca Triathlon

Rockford, Minnesota

Triathlon

The Lake Rebecca Triathlon, set in Rockford, MN, offers a scenic and welcoming environment for athletes of all levels. Scheduled for July 27, 2025, the event features two race formats: a Sprint, which..

Hoot Lake Triathlon

Fergus Falls, Minnesota

Triathlon

The Hoot Lake Triathlon, organized by the YMCA of the Northern Sky, takes place at Hoot Lake, located northeast of Fergus Falls, Minnesota. This exciting event features a ¼ mile open water swim, a 15...

Findley Lake Triathlon Festival

Findley Lake, New York

Triathlon

The Findley Lake Triathlon Festival, set in the scenic lakeside community of Findley Lake, NY, features a variety of competitive events including Sprint and Olympic Triathlons, AquaBike, and a unique..

Marble Falls Triathlon

Marble Falls, Texas

Triathlon

The Marble Falls Triathlon, held annually in Marble Falls, Texas, offers a scenic and challenging race experience in the beautiful Texas Hill Country. The event features two distance options: an Inter..

Wednesday

Brick Endurance Summer Triathlon Series

Durham, North Carolina

Triathlon

The Brick Endurance Summer Triathlon Series is a sprint triathlon event held at Rolling View State Park in Durham, North Carolina. The series features four races throughout the summer, each consisting..

August 2025

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Alexandria Triathlon

Alexandria, Minnesota

Multisport

The Alexandria Triathlon is a dynamic sports event scheduled for August 1-2, 2025, in Alexandria, Minnesota. Participants can choose from various events, including an Individual option with either a s..

Xterra Portland

Gaston, Oregon

Cross Triathlon

XTERRA Portland is an off-road triathlon event held at Hagg Lake in Gaston, Oregon, and part of the XTERRA World Tour. The race features multiple categories including a full-distance triathlon (1K swi..

Booster Bash Triathlon

Salem, Illinois

Triathlon

The Booster Bash Triathlon and 5K is an exciting athletic event organized by the Salem Wildcat Booster Club, taking place at the Salem Family Aquatic Center in Salem, Illinois. Participants can choose..