Triathlon Calendar United States 2025-2026

Millstadt Parks Biathlon

Millstadt, Illinois

Duathlon

The Millstadt Parks Biathlon & 5K, held annually in Millstadt, Illinois, features a challenging biathlon consisting of a 5-mile run through scenic farmland followed by a 22-mile bike ride with high-sp..

Texas City Triathlon

Texas City, Texas

Triathlon

The Texas City Triathlon, Duathlon, & Aquabike is an exciting multisport event scheduled for September 20, 2025. Participants can choose from various events, including Sprint Triathlons for different..

Ironman Maryland

Cambridge, Maryland

Triathlon

Ironman Maryland 140.6 is a triathlon event held in Cambridge, Maryland. The race features the full Ironman distance of 140.6 miles, combining swimming, cycling, and running segments. The event is sup..

Ironman 70.3 New York

Carlton, New York

Triathlon

Rexburg Rush Triathlon

Rexburg, Idaho

Triathlon

The Rexburg Rush Triathlon at Wakeside Lake, held in Rexburg, Idaho, is a well-organized multi-distance event featuring sprint and Olympic distances, including youth and team categories. Set against t..

She Tris Sprint Triathlon - Carnes Crossroads

Summerville, South Carolina

Triathlon

The She Tris Sprint Triathlon - Carnes Crossroads is an empowering event designed for women of all skill levels, taking place in Summerville, SC. Scheduled for September 20, 2025, the triathlon featur..

DSI Triathlon

Red Wing, Minnesota

Triathlon

The DSI Triathlon & Inclusive 4k is a versatile athletic event taking place in Red Wing, MN, featuring a range of activities suitable for all participants. Competitors can choose from a solo triathlon..

20-21

Sa - Su

Giant Acorn Triathlon

Spotsylvania Courthouse, Virginia

Triathlon

The Giant Acorn Triathlon Festival, taking place at Lake Anna State Park in Spotsylvania, VA, features both Olympic and Sprint distance races. Participants can choose from various events, including in..

New River Trail Challenge

Max Meadows, Virginia

Triathlon

The New River Trail Challenge is a multi-sport event held in Max Meadows, Virginia, featuring a unique triathlon format. Participants can choose to compete individually or in teams of two or three. Th..

Wildman Triathlon Experience

Lawrenceburg, Kentucky

Triathlon

The Wildman Triathlon Experience, set in Lawrenceburg, Kentucky, is an exhilarating event that challenges participants through the scenic Bluegrass hills. This triathlon features multiple race formats..

Harvest Hammer Duathlon

Morrison, Illinois

Duathlon

The Harvest Hammer Duathlon, held in Morrison, Illinois, offers a dynamic race experience featuring a 5K run combined with a 21-mile bike ride for duathletes. Participants can also choose to run only..

Carlyle Lake Triathlon

Carlyle Township, Illinois

Triathlon

The Carlyle Lake Triathlon, scheduled for September 21, 2025, is an exciting multi-sport event held in Carlyle Township, Illinois. Participants can choose from various events, including Sprint and Oly..

Ironman 70.3 Washington Tri-Cities

Richland, Washington

Triathlon

The Ironman 70.3 Washington Tri-Cities is a triathlon event held in Richland, Washington. This half-Ironman distance race features a 1.2-mile swim, 56-mile bike ride, and 13.1-mile run, challenging at..

Long Beach Island Triathlon

Harvey Cedars, New Jersey

Triathlon

The DQ Long Beach Island Triathlon, Duathlon, and Aquabike event will take place at Bayview Park in Long Beach, NJ. Participants can choose from various events, including a triathlon, duathlon, aquabi..

TriKB

Key Biscayne, Florida

Triathlon

The TriKB is a popular multi-sport event held in Key Biscayne, Florida, featuring a variety of competitions including Sprint Triathlon, Sprint Duathlon, International Triathlon, International Aquabike..

Wallis Sands Triathlon

Rye, New Hampshire

Triathlon

The Wallis Sands Triathlon, taking place at Wallis Sands State Park in Rye, New Hampshire, offers a scenic and exciting experience for athletes. Participants can choose from various events, including..

Key Biscayne Triathlon Trilogy

Key Biscayne, Florida

Triathlon

The Key Biscayne Triathlon Trilogy #2 is a multi-sport event taking place at Crandon Park in Key Biscayne, Florida. This exciting race features various competitions, including Sprint Triathlon, Sprint..

Last TRI

Shelby Township, Michigan

Triathlon

The Last TRI is an exciting multisport event taking place at Stony Creek Metropark in Shelby Township, MI. This inaugural event features a variety of competitions, including Olympic and Sprint Triathl..

27-28

Sa - Su

Waterman's Triathlon Festival

Rock Hall, Maryland

Triathlon

The Waterman's Triathlon Festival, taking place in Rock Hall, Maryland, features a variety of triathlon events over two days, including Long Course, Olympic, and Sprint distances, as well as Aquabike..