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!
August 2026
The annual Naperville Sprint Triathlon offers several race formats from Centennial Beach Park. Participants can tackle a swim, bike, and run course individually or as a relay.
At Ottawa Metro Park in Lima, OH, the Lima YMCA Kewpee Triathlon & Duathlon features triathlon, duathlon and relay events. Courses include a looped swim in Lima Lake Reservoir, a 15 mile bike and a 5k run.
This multi-sport event in Post Falls offers sprint triathlon and duathlon options for individuals and teams. The courses start and finish at Q’emiln Park, featuring a swim in the lake and a bike ride to the state border. Chip timing and an award cere..
The Des Moines Triathlon offers a variety of races at Gray's Lake Park, featuring a sandy beach swim start and a closed bike course. Choose from Sprint and Olympic triathlons, aquabike, duathlon, and an open water swim.
Experience a local multisport event in Ashburn featuring a pool swim, a neighborhood bike ride, and a 5k run through Broadlands. Compete as an individual or join friends to form a relay team for this community triathlon.
Southern Tier Triathlon Club Summer Tri Series
This is the third event in the Southern Tier Triathlon Club's Summer Tri Series. It takes place in the lakeside community of Cassadaga, New York, located off Interstate 90.
The main event is a super spri..
Experience Newport Beach with a 1K swim and 5K run at Coveathlon 4. Choose between combined events, individual races, or a relay and enjoy post race celebrations at Newport Dunes.
A two day triathlon and endurance festival in Vancouver WA featuring sprint and Olympic triathlon formats, runs, aqua bike and paddle options, virtual events and a free kids triathlon at a riverside venue with mountain and lake views.
Experience the mountains of Wyoming at the Cowboy Tough Adventure Race in Curt Gowdy State Park. Choose between 8 hour or 50 hour events featuring mountain biking, trekking, and paddling for solo racers and teams.
This kids' triathlon in Olney offers a fun, untimed experience for ages 3-15. It features three divisions with different age groups and is free for Richland County youth. Join on August 7 at the Musgrove Aquatic Center.
Experience a crystal clear open water swim and high desert cycling in Santa Rosa at the City of Lakes Triathlon. Choose from Sprint and Olympic distances or join the Friday youth Splash and Dash for a full weekend of multisport action.
Tackle a scenic multisport challenge in Coeur d'Alene. Choose from an Olympic triathlon with a unique deep-water start, a shorter Scenic Sprint, or a duathlon. All courses finish at City Park with a celebration.
East Canyon Triathlon in Morgan UT offers multiple race options for all levels. Start at East Canyon Reservoir on a point to point course with fast descents into Morgan and a scenic run along the Weber River; VIP packet delivery available.
The Summer Sizzler brings multisport action to Beaver Island State Park. Choose from several formats, including unique two-loop Formula 1 triathlon and duathlon races. The event features a swim in the Niagara River and scenic bike and run courses.
Sprint multisport races at Kill Creek Park in Olathe on August 8, 2026, featuring swim-bike-run triathlon, run-bike-run duathlon, aquabike and aquathlon with relay and GARMIN employees categories. The field is capped at 400 participants.
Twin Lakes Triathlon
The Twin Lakes Triathlon takes place at Twin Lakes Bible Camp in Manson, Iowa. It features two main events: a Sprint Triathlon and a Super Sprint Triathlon, as well as a standalone 500M Open Water Swim.
Events and Distances
Spri..
Experience a scenic triathlon on Brigantine Island featuring a bay swim and coastline bike and run. Join hundreds of athletes for this community event supporting local organizations in Brigantine New Jersey.
A multi-event triathlon and duathlon at Culver Academies on August 8, 2026 featuring adult triathlon and duathlon, team relays and children’s races plus on-site amenities, safety teams and an on-campus bike and run course.
Experience the Schuylkill River in Norristown with a variety of aquatic challenges. Choose from swimming distances ranging from 800 meters to 5K or take on the unique SwimRunSwim multi-sport event.
An 11th annual sprint distance triathlon and a mile open water swim at Fidler Pond Park in Goshen on August 8, 2026. The quarry is open for swimming only that day and swim courses run counter clockwise with chip timing.