United States
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Alabama9
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Alaska7
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Arizona10
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Arkansas2
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California38
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Colorado8
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Connecticut3
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Delaware3
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District of Columbia
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Florida46
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Georgia13
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Hawaii1
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Idaho9
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Illinois15
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Indiana21
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Iowa8
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Kansas5
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Kentucky9
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Louisiana3
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Maine7
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Maryland11
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Massachusetts17
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Michigan27
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Minnesota16
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Mississippi3
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Missouri14
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Montana3
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Nebraska3
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Nevada
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New Hampshire
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New Jersey23
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New Mexico3
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New York51
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North Carolina30
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North Dakota
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Ohio12
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Oklahoma6
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Oregon9
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Pennsylvania16
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Puerto Rico
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Rhode Island1
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South Carolina14
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South Dakota
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Tennessee22
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Texas44
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Utah15
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Vermont
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Virginia33
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Washington13
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West Virginia5
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Wisconsin24
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Wyoming2
Triathlon Calendar United States 2025-2026
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 2025-2026! Our updated list features 632 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
Celebrate the 10th Great Escape Triathlon in Jefferson City on June 13 and 14, offering races for ages 5 to adult with a 50 meter pool swim and scenic bike and run past the historic Missouri State Penitentiary. All finishers receive medals and shirts..
Join the Payson Orchards Triathlon on June 13, 2026 in Payson, UT for sprint and youth triathlon options plus a 5K walk run. Enjoy scenic orchard roads, a pool swim, race swag, and a festive community vibe.
Tackle IRONMAN 70.3 Eagleman on June 14, 2026 in Cambridge Maryland, a scenic half distance triathlon on the Eastern Shore. Enjoy a 1.2 mile swim, 56 mile bike through Blackwater National Wildlife Refuge and a flat 13.1 mile run to Gerry Boyle Park.
Tackle IRONMAN 70.3 Rockford, a qualifier for the 2026 World Championship, with a Rock River swim, rolling country bike and flat trail run. Expect lively crowds, course side parties and hometown energy that sells out fast.
Join the 2026 Cal Tri DC on June 14, 2026 at Sweden Point Marina for a scenic triathlon with sprint, Olympic and youth race options for all ages and abilities. Swim, bike and run along the Chesapeake shoreline for a fun summer challenge.
Join the ninth annual Bozeman Triathlon on June 14, 2026 at Glen Lake Rotary Park in Bozeman, MT. Tackle Olympic, Sprint, Super Sprint or Youth Splash and Dash courses, with Olympic and Sprint doubling as Montana state championships.
Push your limits at the Summer Sizzle Adventure Race at Lake Anna State Park, a five hour challenge combining trail running, mountain biking, paddling and map navigation. Solo, team and family divisions plus a weekend bundle make it perfect for all l..
Take on Playtri Little Elm Lake Triathlon on June 14, 2026 at Little Elm Park Beachfront Recreational Park in Texas. Choose sprint, Olympic or Run Bike Run formats with lake swims, scenic bike loops and a fast trail finish.
Join the AdventHealth Cool Sommer Mornings series at Clermont Waterfront Park, held monthly June through September 2026. Choose triathlon, duathlon, aquabike, a 5K or the new double distance options for fun racing at every level.
Join She Tris Sprint Triathlon in South Charlotte on June 14, 2026 for a welcoming women's sprint featuring a 200 yard swim, 8 mile bike and 2 mile run. Relay, aquathlon, duathlon and virtual options welcome participants of all levels.
Push your limits at the Columbia River Half Iron in Vantage WA on June 14 2026: a scenic swim, rolling bike and finish run with a finisher medal. Solo and relay entries welcome on this challenging Columbia River course.
On June 14, 2026, experience a sprint triathlon at historic Fort Adams in Newport with a protected cove swim, scenic Ocean Drive bike loop and a waterfront run through the fort grounds. A coastal race perfect for fast times and seaside views.
Join Wilson Endurance Sports for athlete centered triathlons across New York and Connecticut, from Super Sprint to Long Distance, on scenic waterfront courses with no cut off times. Fields are capped at 350 and a portion of fees supports local commun..
Join Brick Endurance Summer Triathlon Series #2 on Wednesday June 17, 2026 at Rolling View State Park in Durham. This friendly evening sprint tri features a short swim, flat bike and park run perfect for all levels.
Join Tri Faster SwimRun at Fox Brook Park in Brookfield on June 17, 2026. Swim open water loops or race an aquathon or 5k on a fast flat lakeside course, with chip timing, awards, showers and post race snacks.
Join the 39th annual ConcreteMan and ConcreteKids Triathlon in Rogersville on June 19 and 20 2026 for family friendly youth races and a full range of adult distances. New supersprint added and a course preview is set for May 28.
Join Cal Tri at scenic Castaic Lake on June 20, 2026 for open water swims and multisport fun. Pick from 18 options including Sprint and Olympic triathlons, Run Bike Run, SwimRun, swims, runs, and free youth races for ages 7 to 17.
Race along the sand and surf at Hilton Head Beach Bum Triathlon and Duathlon at Coligny Beach Park on June 20, 2026. Short ocean swim, flat beach bike and run plus relay options make it a fun seaside challenge for all levels.
Race on Lake George at the Ticonderoga Triathlon Festival, June 20, 2026, with Sprint, Olympic, Double Ti and relay options. Swim the lake, bike rolling hills and run lakeside in a welcoming, race day festival.
Challenge yourself at the Tremont Triathlon on June 20, 2026 in Tremont IL with sprint and mini distances, relay teams, and double race options for extra fun. Family friendly course and age group awards make it great for all levels.