United States
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Alabama14
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Alaska12
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Arizona15
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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 985 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
July 2026
The Appleman Triathlon offers a scenic multi-sport challenge in Littleton, MA. Choose from a sprint triathlon, duathlon, relay, or AquaBike event starting at Long Pond. The family-friendly venue includes a beachfront transition, post-race festivities..
Tri the Park Tarrytown is a youth triathlon for ages 6 to 16 featuring two distance options at Pierson Park. Participants complete a pool swim and closed bike loop before receiving a finisher medal.
Join a multi-sport event at Fox Brook Park featuring an aquathon, open water swims, and a 5k run. Participants navigate a 500m lake loop and a flat paved path in Brookfield Wisconsin.
A youth swim-run event in Geneva with two age categories. Juniors (6-10) tackle a 100m swim and 1k run, while Seniors (11-17) complete a 200m swim and 2k run. The event features a pool swim, a trail run, and finisher medals for all participants.
Test your endurance at the Boston DEKA FIT. The indoor event combines 10 fitness zones with a 5 km run. Categories include Elite, Age Group, Ruck, and team competitions.
The Chisago Lakes Triathlon in Minnesota offers a full weekend of multisport. Events include Half Iron, Olympic, and Sprint distances for individuals and teams, plus dedicated kids' races. It's held at Paradise Park over two days.
Experience the inaugural Ironman 70.3 Boise featuring a reservoir swim and a scenic bike through the foothills. Finish your race with a flat run along the greenbelt in the heart of Idaho.
The Lake Country Triathlon in Oconomowoc offers Sprint, Olympic, and Half Iron distances, plus relay options for each. The course features a swim in Lac La Belle, a bike ride through glacial landscapes, and a run along the lake shore. All finishers r..
Celebrate the 39th year of the Mountain Lakes Triathlon in Guntersville. Athletes swim in Lake Guntersville, bike a flat loop, and run on lakeside greenways. Options include Sprint and Olympic distances for individuals or relay teams.
Experience a flat and fast course at Lake Springfield with sprint, olympic, and half distance options. Enjoy a calm lake swim followed by a shaded run and scenic bike path in the heart of Illinois.
This patriotic themed triathlon honors First Responders and invites everyone to join as 'backup'. The event features a sprint triathlon, duathlon, aquabike, and relay options. Proceeds support local First Responder agencies and a student scholarship.
A multisport race day at Laurel Lake Club House in Millville on July 25, 2026 featuring triathlon, duathlon, aquabike, aquathlon and a super sprint. Courses use the lake for swimming and rural roads and paths for bike and run legs.
Event Information
The Tri Millennium is a multisport event held in Walker, Michigan. It takes place over two days in late July. The event features various formats: triathlon, duathlon, and aquabike in both Sprint and Olympic distances. There are also..
This 24-hour team adventure race explores a new area of New York's Adirondack Mountains. Teams of two to four will navigate forests, mountains, and waterways on mountain bikes and packrafts. The course features optional checkpoints to help all teams..
Experience a unique multi sport event featuring paddling, cycling, and trail running through scenic terrain. Compete solo or form a team for this community focused race that concludes with a celebration at the Hayward Curling Club.
Experience a unique triathlon featuring kayaking instead of swimming along the shores of Lewis & Clark Lake. Choose between a multi sport challenge, a half marathon, or a twelve mile bike race through scenic rolling hills.
Experience the scenic Culpeper Triathlon at Mountain Run Lake Park featuring swim bike and run courses with Blue Ridge Mountain views. Choose between Olympic and Sprint distances or Aquabike options in this USAT sanctioned event.
A multi discipline triathlon in Merrill, Wisconsin on July 25, 2026 featuring a 2 mile paddle, a 17.5 mile bike on the River Bend Trail, and a 5K trail run. Multiple divisions include solo, 19U, relay, tandem, and eBike categories.
The Shell Lake Sprint Triathlon and Duathlon offer a classic multi-sport challenge in a scenic lake setting. Choose between a swim-bike-run triathlon or a run-bike-run duathlon, with individual and team options available. All finishers receive a meda..
This 19th annual triathlon in McPherson, Kansas, offers a classic sprint distance alongside a shorter youth event. Multiple team and corporate competitions are also available.