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

August 2025
The Waupaca Area Triathlon is an exciting multi-sport event taking place at Shadow Lake in downtown Waupaca. Scheduled for August 15-16, 2025, participants can choose from various challenges, includin..
The Lake Meridian Triathlon is a popular event in the Pacific Northwest, scheduled for August 16, 2025. Participants can choose from various race formats, including Olympic, Sprint, Super Sprint, and..
The Great Snake River Triathlon is set to take place on August 16, 2025, at Snake River Landing in Idaho Falls, Idaho. Organized by TRI PEAKS EPIC EVENTS, this triathlon features various categories, i..
The Mighty Moraine Fall Multi-Sport Festival is a dynamic sports event taking place on August 16-17, 2025, at Moraine State Park in Portersville, PA. This festival features a variety of competitions,..
The Luray Triathlon & Duathlon, set in the picturesque Shenandoah Valley, is a multi-sport event taking place on August 16-17, 2025. This annual event features a variety of competitions, including the..
The Tri the Parks - Don Carter State Park Sprint is a multi-sport event taking place at Don Carter State Park in Gainesville, GA. Scheduled for August 16, 2025, the event features a Sprint Triathlon,..
The Fall Creek Falls Half Iron, Olympic & Calfkiller Sprint Triathlons is an annual event held at Fall Creek Falls State Park in Tennessee, featuring a variety of triathlon distances. The event includ..
The Brookville Olympic Triathlon, Duathlon, and Aquabike event will take place on August 16, 2025, in Barnegat, NJ. This multisport event features various competitions, including the Olympic Triathlon..
The Dam 09 Triathlon, held in San Antonio, Texas, features a 400-meter pool swim, a 9-mile bike ride, and a 4K run. Celebrated as one of Texas's best small triathlons, this event has been attracting p..
The Crystal Lake Triathlon Race is a USAT Sanctioned Sprint Distance Triathlon taking place in Averill Park, NY, on August 16, 2025. This scenic event features a 0.5-mile swim, an 18-mile bike ride th..
The Forge Gravel Triathlon is an exciting multi-sport event scheduled for August 16, 2025, in Lemont, Illinois. This USAT-sanctioned race features a short course triathlon, a duathlon, and relay optio..
The 2025 Cal Tri Walnut Creek is a multi-sport event scheduled for August 17, 2025, at Walnut Creek Park in North Garden, Virginia. This challenging race features a variety of events, including Sprint..
The Greenfields Tri/Aqua/Du/ 5K & Splash and Dash is a multi-sport event taking place in West Deptford, NJ, featuring a variety of races suitable for all skill levels. Participants can choose from a t..
The Game On! Key Largo Triathlon Summer is a multi-sport event taking place in Key Largo, Florida. Scheduled for August 17, 2025, the triathlon features a variety of competitions, including Olympic an..
IRONMAN 70.3 Louisville is a premier triathlon event set in the vibrant city of Louisville, Kentucky. Athletes will experience a scenic swim in the Ohio River, followed by a fast bike ride through the..
The 370 Lakeside Triathlon, taking place in Saint Peters, MO, offers a diverse range of events for participants of all skill levels. Scheduled for August 17, 2025, this USAT sanctioned triathlon featu..
The Great Loon Triathlon, organized by Lifestyle Sports Global LLC, will take place in Lincoln, Maine, featuring a variety of events including Olympic and Sprint Triathlons, a Half Ironman, and Duathl..
Peasantman is an officially sanctioned USA Triathlon event held annually at Indian Pines Park in Penn Yan, New York, on the third Sunday of August. The event features a variety of races, including Ful..
The Try Cambridge Tri is a sprint distance triathlon taking place in Cambridge, Wisconsin. Participants can compete as individuals or in relay teams, with the event featuring a 1/4 mile swim, a 13-mil..
The Cincinnati Triathlon & Multisport Festival is a vibrant event held at Caesar Creek State Park Beach in Waynesville, Ohio. It caters to participants of all ages and skill levels, featuring a variet..