Triathlon Calendar United States 2025-2026

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Explore the best triathlons in the United States for 2025-2026! Our updated list features 227 exciting races across the country. Find your next race in the United States below and join the running community at these great events!

June 2026
The Indian River Networks 40th Annual PineappleMan Triathlon/Duathlon, held in Melbourne Beach, Florida, is the oldest USAT-sanctioned triathlon in the state, founded in 1985. The event features multiple race categories including Elite, Age Group, Ad..
Escape the Cape Triathlon, held in Lower Township, New Jersey, is a multi-distance event produced by DelMoSports and sponsored by DeSatnick Real Estate. The highlight is a 12-foot jump off the Cape May-Lewes Ferry, followed by Olympic and sprint opti..
IRONMAN 70.3 Western Massachusetts takes place in and around Springfield, Massachusetts. The race features a 1.2-mile swim in the Connecticut River, a 56-mile bike ride through the Berkshire Hills, and a 13.1-mile run that winds through Forest Park a..
2026 Cal Tri DC takes place at Sweden Point Marina in General Smallwood State Park, Marbury, Maryland, about 30 miles south of Washington, DC. The event offers 18 options across Olympic, sprint, and youth formats, including six Olympic-distance choic..
The M22 Challenge is a scenic multi-sport event held in Sleeping Bear Dunes National Lakeshore, Northern Michigan. It features a 2.5-mile run starting on M-109, including a challenging sand dune climb, followed by a 17-mile bike ride through pictures..
Event overview The Summer Sizzle Adventure Race is a weekend of adventure racing held in Spotsylvania Courthouse, VA (6800 Lawyers Rd) near Lake Anna State Park. The weekend includes a Saturday race (June 13, 2026) and a Sunday race (June 14, 2026)...
IRONMAN 70.3 Eagleman is held in Cambridge, Maryland, on the Eastern Shore. The course features a 1.2-mile open-water swim in the Choptank River, a fast 56-mile bike through the Blackwater National Wildlife Refuge, and a 13.1-mile run finishing at Ge..
IRONMAN 70.3 Rockford in Illinois is a community-driven triathlon held in Rockford. The course follows the standard 70.3 distances: a 1.2-mile swim in the Rock River, a 56-mile bike through rural Illinois, and a 13.1-mile run on trails in and around..
Cal Tri Castaic Lake is a multisport festival held at Castaic Lagoon in northern Los Angeles County, California. The event offers 18 options: 6 Olympic-distance events, 6 sprint-distance events, and 6 youth events. Distances include Sprint Triathlon,..
The Hilton Head BEACH BUM Triathlon & Duathlon, held annually at Coligny Beach on Hilton Head Island, South Carolina, offers a unique race experience on the flat, hard-packed sand of the beach. The triathlon features a 500m ocean swim, a 6-mile beach..
IRONMAN 70.3 Coeur d’Alene takes place in Coeur d’Alene, Idaho, offering a scenic 1.2-mile swim in Lake Coeur d’Alene, a 56-mile bike through rolling Idaho terrain with lake views, and a 13.1-mile run along historic lakefront homes and cheering spect..
The Bozeman Triathlon, held at Glen Lake Rotary Park in Bozeman, Montana, offers a variety of race options including Olympic, Sprint, Super Sprint, and a High School State Championship division. Distances range from a Super Sprint with a 300m swim, 9..
The Tri Goddess Triathlon, held in Grass Lake, Michigan, celebrates women of all abilities with a supportive and inspiring community. Set in the scenic Portage Lake Unit of Waterloo State Recreation Area, the event offers multiple race formats includ..
Join the Tremont Triathlon on June 27, 2026 at Tremont Community Pool for sprint and mini multisport races featuring pool swims, scenic country road bike rides, and a flat run. Fun for all levels with shorter and sprint options.