Triathlon Calendar United States 2025-2026

Jul

26

Saturday

Heart O' Dixie Triathlon

Louisville, Mississippi

Triathlon

The Heart O' Dixie Triathlon is an annual event held in Louisville, Mississippi, coinciding with the Neshoba County Fair. Participants can compete as individuals or as part of a team, with options for..

Jul

26

Saturday

Black Squirrel Scurry Triathlon

Merrill, Wisconsin

Triathlon

The Black Squirrel Scurry Triathlon is a multi-sport event taking place in Merrill, Wisconsin, featuring a unique combination of paddling, biking, and running. Participants will navigate a 2-mile padd..

Jul

27

Sunday

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..

Jul

27

Sunday

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..

Jul

27

Sunday

Ironman 70.3 Maine

Augusta, Maine

Triathlon

The Ironman 70.3 Maine is a premier triathlon event taking place in Augusta, Maine, known for its scenic and challenging course. Athletes will experience a swift swim in the Kennebec River, followed b..

Jul

27

Sunday

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..

Jul

27

Sunday

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, featurin..

Jul

27

Sunday

Sylvania Triathlon

Sylvania, Ohio

Triathlon

The Sylvania Triathlon, Duathlon, Aquabike, and Relay is a renowned multisport event held at the Tam-O-Shanter Sports Complex and Olander Lake in Sylvania, Ohio. As one of the oldest events of its kin..

Jul

27

Sunday

Smiley Sprint Triathlon

Clemmons, North Carolina

Triathlon

The Smiley Sprint Triathlon is a vibrant event scheduled for July 27, 2025, in Clemmons, NC. This triathlon features various categories, including Age Group, Novice, Aquabike, Relay Team, and Assisted..

Jul

27

Sunday

TriKB

Key Biscayne, Florida

Triathlon

The TriKB event, taking place in Key Biscayne, FL, features a variety of competitive races including Sprint Triathlon, Sprint Duathlon, International Triathlon, International Aquabike, and Sprint Aqua..

Jul

27

Sunday

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..

Jul

27

Sunday

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 race formats, including a Sprint, Super Spr..

Jul

27

Sunday

Gillie Girl Triathlon

Camillus, New York

Triathlon

The Gillie Girl Sprint Triathlon is an annual event held in Camillus, NY, designed to encourage female participation in triathlons. The race features a 1/2 mile swim in Gillie Lake, a 15-mile bike cou..

Jul

27

Sunday

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..

Jul

27

Sunday

Hoot Lake Triathlon

Fergus Falls, Minnesota

Triathlon

The Hoot Lake Triathlon, organized by the YMCA of the Northern Sky, takes place in Fergus Falls, Minnesota. This exciting event features a ¼ mile swim in Hoot Lake, a 15.7-mile bike ride through sceni..

Jul

27

Sunday

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 races, and a u..

Jul

27

Sunday

Marble Falls Triathlon

Marble Falls, Texas

Triathlon

The Marble Falls Triathlon, taking place on July 27, 2025, in Marble Falls, Texas, is a scenic and challenging event set in the beautiful hill country. Participants can choose between two distances: a..

Jul

30

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..

Aug

1-2

Fr - Sa

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..

Aug

2

Saturday

Xterra Portland

Gaston, Oregon

Cross Triathlon

XTERRA Portland is an exciting off-road triathlon event scheduled for August 2, 2025, in Gaston, Oregon. As part of the XTERRA World Tour, it offers a range of races, including a full distance triathl..