Triathlon Calendar United States 2025-2026

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Explore the best triathlons in the United States for 2025-2026! Our updated list features 621 exciting races across the country. Find your next race in the United States below and join the running community at these great events!

June 2025
The Bare Hill Sprint Triathlon, Duathlon, and Aquabike will take place in Harvard, MA, on June 8, 2025. This grassroots event caters to both novice and experienced multi-sport athletes, featuring a Sp..
The Game On! Escape to Hutchinson Island Triathlon is a multi-sport event taking place in Stuart, Florida, featuring various race formats including International and Sprint Triathlons, Duathlons, Aqua..
The 2025 Cal Tri Castaic Lake event, scheduled for June 14, 2025, offers a variety of competitive options for athletes of all ages and skill levels. Participants can choose from multiple events, inclu..
The Lake Minnetonka Triathlon is an annual sprint-distance event held at Excelsior Commons in Excelsior, MN. This community-focused triathlon aims to promote health and wellness while supporting local..
The Conneaut Lake Sprint Triathlon is an exciting athletic event scheduled for June 14, 2025, in Conneaut Lake, Pennsylvania. Participants can choose to compete individually or as part of a relay team..
The IRONMAN 70.3 Boulder is a premier triathlon event set against the stunning backdrop of Boulder, Colorado, at the foot of the Rocky Mountains. Athletes will experience a unique course that includes..
The Three Lakes Triathlons and Kings Market San Juan Island Runs is an exciting all-sport weekend event set in the picturesque Lakedale Resort on San Juan Island, WA. Scheduled for June 14, 2025, the..
The Lake Frances Triple P Triathlon, scheduled for June 14, 2025, is an exciting multi-sport event held at Lake Frances in Valier, Montana. Participants can compete in a kayak triathlon as individuals..
The Tri Star Sprint & Olympic Triathlons, scheduled for June 14, 2025, in Knoxville, TN, features a variety of events catering to different athlete categories. Participants can choose from individual..
The Stafford Race for HOPE Triathlon, Duathlon, and Aquabike is a multi-sport event taking place at Manahawkin Lake Park in New Jersey. Scheduled for June 14, 2025, the event features various competit..
The Lander Reverse Triathlon is an exciting event scheduled for June 14, 2025, in Lander, Wyoming. This unique triathlon format features a 5k run, 32k bike ride, and a 600-yard swim for adults and tea..
The Wet Dog Triathlon, celebrating its 24th year, is a popular sprint triathlon held at Point Mallard Park in Decatur, Alabama. This event features a 400-meter open water swim, a 15k bike ride, and a..
The Payson Orchards Triathlon, scheduled for June 14, 2025, in Payson, Utah, features a scenic sprint triathlon, a 12 and under super-sprint triathlon, and a 5K walk/run. Known for its picturesque cou..
The Ticonderoga Triathlon Festival, set in the scenic town of Ticonderoga, NY, features a variety of events including Sprint and Olympic Triathlons, AquaBike competitions, and relay team options. Part..
The Scoogie Events Kids Rock Triathlon & Duathlon is an exciting athletic event designed for children, taking place in Penllyn, PA. Scheduled for June 14, 2025, the event features both a triathlon and..
Against the Tide is a family-friendly multi-sport event organized by the Massachusetts Breast Cancer Coalition (MBCC) to raise funds for breast cancer prevention initiatives. Participants can engage i..
The San Juan Trail Triathlon, scheduled for June 14, 2025, in Ridgway, Colorado, features a combination of outdoor activities including a 6k trail run, a 3k stand-up paddle (SUP) event, and a 14k moun..
Strokes, Spokes and Strides is a vibrant sprint distance triathlon held in Waynesboro, Pennsylvania, designed to promote community spirit and inclusivity among athletes of all levels. The event featur..
The Black Butte Triathlon is set to take place on June 14, 2025, in Corning, California. This exciting event features three race options: an Olympic Distance Triathlon, a Sprint Distance Triathlon, an..
The Pat Griskus Olympic, Du, Sprint Triathlon is a well-established multi-sport event held at Quassy Amusement Park in Middlebury, Connecticut. Originating in 1987, the event features various race for..