United States
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Alabama14
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Alaska12
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Arizona14
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Arkansas6
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California71
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Colorado15
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Connecticut15
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Delaware5
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District of Columbia
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Florida55
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Georgia19
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Hawaii3
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Idaho16
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Illinois29
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Indiana32
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Iowa18
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Kansas6
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Kentucky11
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Louisiana9
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Maine9
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Maryland21
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Massachusetts24
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Michigan36
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Minnesota24
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Mississippi10
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Missouri14
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Montana9
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Nebraska5
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Nevada1
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New Hampshire2
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New Jersey31
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New Mexico8
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New York77
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North Carolina36
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North Dakota1
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Ohio23
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Oklahoma8
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Oregon13
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Pennsylvania34
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Puerto Rico1
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Rhode Island3
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South Carolina20
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South Dakota3
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Tennessee28
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Texas61
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Utah16
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Vermont3
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Virginia41
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Washington31
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West Virginia8
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Wisconsin36
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Wyoming3
Triathlon Calendar United States 2026-2027
Monthly updates for United States
Get new running races (and updates) in your inbox every month.
Explore the best triathlons in the United States for 2026-2027! Our updated list features 984 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
Experience a professionally managed multisport event at the scenic Westin Cape Coral Resort. Choose from sprint or international distances in triathlon, duathlon, and aquabike categories during Labor Day Weekend.
Experience a scenic triathlon at Rattlesnake Lake featuring a fresh water swim, a 10 mile mixed surface bike ride, and a 4 mile trail run. Choose between individual entry or relay teams for this USAT sanctioned event.
Experience a scenic triathlon in the Sierra mountains featuring a lake swim, a three loop bike course, and a rolling road run. This California event includes a post race lunch and awards for various age groups.
Experience a premier multisport event in Lafayette featuring triathlon, duathlon, and aquathlon races. Compete in an open water swim at Airport Lake and a scenic bike and run through the Lafayette Regional Airport grounds.
Experience a premier multi sport event at Belle Isle State Park in Detroit. Choose from triathlon duathlon and aquabike categories while enjoying views of the Detroit River and the city skyline.
Experience a traditional swim, bike, and run event in Bountiful, Utah. Choose between sprint and novice distances featuring a pool-based serpentine swim and a scenic road course.
Celebrate Labor Day at the Oak Point Recreation Center with a full suite of multisport races including triathlons, duathlons, and youth events followed by a festive picnic in Plano.
Test your limits at the Wisconsin ANVIL Ultra Triathlon in Ottawa Lake State Park. Experience a unique looped course with constant crew access and 24 hour support in a community focused endurance environment.
Join this midweek sprint triathlon at Rolling View State Park in Durham. Experience a 400 yard swim along with a flat 11 mile bike ride and a 2 mile run through the park scenery.
Brineman Triathlon in Syracuse, Utah on Sept 11, 2026 features a spectator friendly swim at Stillwater Lakes, a bike on Antelope Island State Park, and a fast flat run on paved trails. Distances range from sprint to long course with aquabike and duat..
Experience a multi sport challenge through New Mexico and Colorado featuring a 6 mile trail run, 3 mile paddle, and 15 mile mountain bike ride followed by a shotgun shooting course. Compete solo or in a relay team.
Test your endurance at Smith Mountain Lake State Park with ultra distance triathlons, duathlons, and aquabikes. This USA Triathlon sanctioned event offers distances up to 281 miles through Virginia’s scenic Blue Ridge Mountains.
Experience an inclusive triathlon at Monona Terrace in Madison Wisconsin. Join as an Angel or Captain to complete this memorable race through a unique partnership focused on teamwork and community achievement.
Experience a unique multisport charity event at Lake Coeur d'Alene combining kayaking or paddle boarding with a scenic run. Join as an individual or a team to support the local animal shelter at Higgens Point.
The Outer Banks Triathlon returns to Manteo, North Carolina in September 2026. The event is centered at the Dare County Regional Airport.
Experience a premier multisport event at Tugaloo State Park featuring Olympic and Sprint distances for triathletes and aquabike racers. Join as an individual or form a club team to compete in the beautiful landscape of Lavonia.
Square Lake 70.3 is the season's final half-distance triathlon, set in the scenic Square Lake Park. Athletes take on a 1.2-mile swim, a 57-mile bike on quiet, hilly roads, and a 13.1-mile shaded run. The event includes a post-race barbecue and profes..
Experience a multisport race at the Miami State Recreation Area featuring Triathlon, Duathlon, and Aquabike events. Choose from Sprint, Olympic, or Half Iron distances with convenient parking right by the beach and transition areas.
Experience a scenic multisport event at Carolina Marina featuring triathlon, duathlon, and aquabike options. Race through clear lake waters and rolling bike terrain in this professionally organized Olympic distance competition.
Event Overview
The San Diego Tri Classic & San Diego 5K is a multisport event taking place at Liberty Station in San Diego. The event features several race formats including triathlon, aquabike, duathlon, and aquathlon, as well as a standalone 5K..