Triathlon Calendar United States 2026-2027

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Explore the best triathlons in the United States for 2026-2027! Our updated list features 564 exciting races across the country. Find your next race in the United States below and join the running community at these great events!

September 2026
A multisport day at Wenonah Lake with triathlon, duathlon, aquabike, relay, super sprint, and swim/run events on September 13, 2026.
A sprint triathlon and relay in Lake Orion with a 0.75 km swim, 20 km mixed-terrain bike, and 5 km trail run plus a 100-athlete cap.
A short-course triathlon in Knoxville on September 13, 2026, featuring a 100 yard swim, about a 5.3 mile bike and a 4 km run, with individual and two or three person relay divisions and multiple age and weight classes.
A USAT-sanctioned sprint and super sprint triathlon at Walsh Lake Park on September 13, 2026, featuring lake swims, looped bike courses, chip timing, and finisher medals.
Multi-sport event at Sandy Creek Park in Athens offering sprint distance swim bike run, aquabike, and duathlon formats on September 13 2026. A sprint relay option allows teams of two or three.
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Experience one of the longest running Olympic distance triathlons in the USA with scenic courses through the woodland and farm roads of beautiful Sag Harbor.
Sprint triathlon at Square Lake Park in Stillwater MN with a 0.5 mile swim, 18.5 mile bike and 3.1 mile run plus post race barbecue and awards.
A comprehensive multisport festival at Hueston Woods State Park featuring triathlons, duathlons, open water swims, and running races for all ability levels.
A sprint-distance, adult only event at Typhoon Texas Waterpark in Katy, Texas on September 13, 2026 offering a reverse triathlon, multisport options, a 439-yard swim, and a 5K run.
A sprint triathlon at George Wyth State Park featuring a 500 meter swim, 16.5 mile bike and 5K run, with individual, relay and swim only options supporting the Family YMCA of Black Hawk County.
Sprint triathlon at Trane Technologies Campus in Davidson NC with a 750 m swim, 12.7 mile bike and 5K run on September 13, 2026.
IRONMAN 70.3 Santa Cruz on September 13, 2026 includes a 1.2 mile ocean swim, a 56 mile bike on Highway 1 and a flat half marathon along coastal bluffs.
IRONMAN Wisconsin in Madison is an IRONMAN triathlon with a lake swim, rolling bike, hilly run and a Capitol finish, noted for strong spectator support.
Experience a premier women's triathlon in Hopkinton featuring a swim, bike and run. This event offers individual and relay categories with a capped participant field for an focused racing atmosphere.
Experience a multisport challenge at Shaver Lake with triathlon, duathlon, and running events held at Camp Edison. Enjoy hilly bike routes and scenic trail runs followed by a tri tip lunch and finisher celebrations.
A multi-discipline event at Clermont Waterfront Park with sprint and double triathlon, duathlon, aquabike, aquathlon and a 5K plus themed medals and age-group awards.
Experience a flat and fast multi sport event at the scenic Public Landing in Snow Hill. Choose from triathlon, duathlon, or aquabike formats featuring a beach swim and a straight bike course.
Multisport event in Warrington on September 13, 2026 with pool swim, bike and run options including triathlon, duathlon, Aquavelo and relays.
Experience a multisport festival at DeGray Lake Resort State Park featuring triathlon, duathlon, and aquabike events. Choose between Olympic and Sprint distances set against the scenic backdrop of the Caddo River and Ouachita mountains.
Experience a USAT sprint triathlon at The Boulders at Lake Tyler. This event features a 650 meter swim, a 13 mile bike ride, and a 5k run available for individuals or relay teams.
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