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 614 exciting races across the country. Find your next race in the United States below and join the running community at these great events!

May 2025
The White Lake Spring International & Sprint is a triathlon event taking place at the Grand Regal @ Goldston's Beach in White Lake, North Carolina. Scheduled for May 4, 2025, the event features both I..
The Keep Texas Wild Triathlon is an exciting multi-sport event scheduled for May 4, 2025, in Mathis, Texas. Participants can choose from various race formats, including a Sprint Triathlon, Mini-Sprint..
The Brick Endurance Summer Triathlon Series is a sprint triathlon event held at Rolling View State Park in Durham, North Carolina. The series features a 400-yard swim, an 11-mile flat and fast bike co..
The Goody Duathlon is an adaptive sports event taking place in Pulaski, Wisconsin, focused on inclusivity and accessibility. Participants can reserve essential adaptive equipment, including race chair..
The Pioneer Spirit Triathlon, held in Petersburg, IL, features a variety of events including a 5k run/walk, mini triathlon, sprint triathlon, and a tri-challenge. This mid-spring event caters to both..
The Spirit of Kona Triathlons is an exciting multi-sport event taking place in Lenoir City, TN, featuring a variety of races including Sprint and Olympic triathlons, aquabikes, relays, and running eve..
The New River Splash Triathlon, Duathlon & 5k is an exciting multi-sport event taking place in Jacksonville, North Carolina, on May 10, 2025. Participants can choose from a triathlon, duathlon, or a 5..
The IRONMAN 70.3 St. George is a prestigious triathlon event held in St. George, Utah, known for its breathtaking landscapes and challenging course. Athletes compete in a 1.2-mile swim in the Sand Hol..
The IRONMAN 70.3 Gulf Coast is a premier triathlon event held in Panama City Beach, Florida, featuring a scenic course that includes a swim in the Gulf of Mexico, a fast bike ride through picturesque..
The Fly By Night Duathlon is an exciting multi-sport event taking place at the historic Watkins Glen International racetrack in New York. Scheduled for May 10, 2025, the duathlon features various race..
The Ordinary Mortals Duathlon, scheduled for May 10, 2025, at Lake Pueblo State Park, features a new format that replaces the traditional triathlon with a duathlon. Participants will engage in a 3-mil..
The Heart and Sole Triathlon, established in 2004, is set to take place in Versailles, Kentucky, on May 10, 2025. This sprint triathlon is open to participants aged 15 and older and features a 400-yar..
The Gator Grinder Triathlon, taking place in Canby, Oregon, is an engaging event designed for both novice and experienced triathletes. It features multiple race formats, including a Road Bike Sprint T..
Thunder in the Valley is a celebrated triathlon event taking place in Terre Haute, Indiana, known for its welcoming atmosphere for both novice and experienced athletes. This year marks its 40th annive..
The Kinetic Triathlon Festival, taking place at Lake Anna State Park in Spotsylvania, VA, is a premier multisport event scheduled for May 10-11, 2025. This festival features a variety of races, includ..
The 5th Annual Swim Run Done Aquathalon in St. Johns, Florida, is a competitive event featuring a half-mile swim followed by a 5K run. Organized by Tri with Skye and Ultimate Racing Inc., the race att..
The Memphis In May Triathlon Weekend is set for May 10, 2025, at Shelby Farms Park in Memphis, TN. This event features multiple races, including the Olympic Triathlon, which consists of a 1.5K swim, 4..
The AdventHealth Girlz on Fire Women's Triathlon & 5K is a vibrant event celebrating women in sports, taking place in Clermont, Florida. Scheduled for Mother's Day weekend, it features a variety of co..
Flater's Triple-R-Triathlon is an exciting annual event held in Holcombe, Wisconsin, featuring a unique combination of running, cycling, and canoeing. Participants can choose to compete solo or as par..