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
Multisport races at Bayview Park on Long Beach Island on September 20, 2026 feature triathlon, duathlon, aquabike and relay options, with bay swims and flat road bike and run courses, awards across multiple divisions, and USAT rules in effect.
Experience a beach start at Illinois largest man made lake followed by a flat bike course and a finish over the dam spillway. This event offers individual and relay options across triathlon duathlon and aquabike distances.
Season ending sprint triathlon and duathlon at Horseneck Beach with an open water swim in Buzzards Bay, scenic bike routes through Westport, and a beach finish.
A multisport event at Stony Creek Metropark in Shelby Township, Michigan featuring Olympic, Sprint and Super Sprint triathlon formats, duathlon and aquabike races plus relay options. Registration opens November 27 2025.
A multi-format community event at Kiel High School featuring full and short sprint triathlons, aquabike options, team relays, a Kid's Triathlon, and a 100 yard Raider Dash, with concessions on site and proceeds to the Kiel High School Booster Club.
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Late season triathlon at White Bear Lake offering Sprint and Olympic distances, Aqua Bike options, relay teams, free photography, awards and a post-race barbecue.
A multisport event at Twin Cove Point, Birch Lake offering Sprint and Olympic triathlons, relays, aquabike, and swim only options. USAT wetsuit rules apply and registrations can be deferred for a fee.
A multisport event at Camp Manitou-lin in Middleville Michigan on September 20 2026 offering sprint and Olympic triathlon duathlon and aquabike formats plus relays and a month long virtual option.
Wallis Sands Triathlon in Rye, New Hampshire features a 1/3 mile ocean swim, a 14.5 mile bike loop and a 5K run across multiple formats including relays and virtual options. The race is USA Triathlon sanctioned and includes chip timing and a technica..
A multisport event in El Paso with pool swims, a 12 mile out and back bike and 3.1 mile runs, plus relay options and a kids splash and dash.
A one-day triathlon event at Lake Blue Ridge Marina on September 20, 2026 featuring a 400 yard swim, 18 mile bike and 5K run. Race formats include sprint, relay and aqua bike with set registration dates and fees.
A Riverfront Park triathlon on September 20, 2026 featuring a 2.5 mile canoe, a 5 km run and a 10 mile bike with solo and two person team options.
A 5K run, 20K bike, and 5K run around Pleasant Ridge Park and county roads near Fairview and Girard, held on 09/20/2026. Individual and two person relay options are available and the event supports the Erie Cancer Wellness Center.
Newport Harbor Triathlon in Newport OR on September 20, 2026 offers adult and youth triathlons, an aquabike, a relay option, and an open 5K.
A Richland, Washington triathlon with a downriver Columbia River swim, a 56 mile bike through vineyards, and a flat 13.1 mile run finishing at Columbia Point Park.
Community triathlon in Albany CA on 20 September 2026 offering a Super Sprint, a mini triathlon for kids and relay team options.
Paddle, bike and run in Bay City on Sunday September 20, 2026 with team canoe or solo kayak options; limited field and proceeds support local community programs.
Navigate Prairie Creek Reservoir by foot, canoe, and bike in this family friendly adventure race where teams use a map and compass to find hidden checkpoints.
Cal Tri Austin at Walter E. Long Metropolitan Park on September 20, 2026, offers 18 events across Olympic, sprint and youth sprint distances, including triathlon, duathlon, swim and run formats.
Sprint and Splash at Brandenburg Park in Chesterfield Township offers a 5K run or walk and an individual duathlon that includes a 2 mile kayak.
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