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

August 2026
Experience the Mighty Moraine Multi Sport Festival at Moraine State Park hosting the Pennsylvania State Triathlon Championships with races from youth sprints to Olympic distance. Swim, bike, run on Lakeview Beach for fun and competition.
Experience the Fall Creek Falls Triathlons on August 15, 2026 at scenic Fall Creek Falls State Park in Tennessee, with Sprint, Olympic and Half Iron options for all levels. Weekend racing continues August 16 with a half marathon, 10K and 5K.
Take on Weather the Storm Triathlon in Bridgeport WV on August 15 with Kids, Super Sprint and Sprint relay or solo entries. Indoor pool swims, paved bike and trail runs plus a free Stretch Zone welcome all levels.
Fox Island Triathlon in Fort Wayne on August 15, 2026 offers sprint tri, duathlon, aquabike and relays on scenic Bowman Lake and park trails. USAT sanctioned and chip timed with 500 spots, it welcomes racers 12 and up.
Tri CLE Rock Roll Run at Edgewater Park in Cleveland features Super Sprint, Sprint and Olympic triathlons plus duathlon, aquabike and relay options. A USA TODAY 10Best sprint event, it showcases a traffic free Memorial Shoreway bike with skyline view..
Michigan Titanium hits Grand Rapids on August 16, 2026, offering triathlon, duathlon, aquabike, relay and swim only races plus a virtual solo option. Distances range from sprint to the full 140.6 mile ultra, welcoming athletes of every level.
Join the Greenfields Triathlon and Splash and Dash at Greenfields Swim Club for beginner friendly multisport distances from kids splash to a 13 mile bike tri. USAT sanctioned event with chip timing, medals and free race photos for finishers.
Peasantman is a multi discipline triathlon at Indian Pines Park featuring longer Steel Distances and race options from full and half to sprint, relay and aquabike. Join a fun community event that raises funds for Penn Yan area causes.
IRONMAN 70.3 Northern California returns to Whiskeytown on August 16, 2026, promising a scenic and challenging race for triathletes. Onsite PlayTri support offers bike rentals, repairs and race ready tune ups to keep you rolling.
Experience the ROC Triathlon at Durand Eastman Beach on August 21 to 22 with open water swims, closed to traffic bike routes and a scenic Lake Ontario run. Multiple distances include USAT qualifying slots, plus a 5K and Kids Splash n Dash.
Race across scenic Glimmerglass State Park with a 1.5 mile paddle, 18 mile bike and a 5K run finishing at the lakefront. Solo racers or teams of 3 or 4 can enjoy protected bay paddling, wooded trails and a festive lakeside finish.
Join the Buster Britton Memorial Triathlon in Pelham, Alabama on Aug 22 for a lake swim, rolling bike hills and a scenic run honoring the event namesake. Sprint and Olympic distances plus relay and virtual options welcome all athletes.
Enjoy a coastal challenge at the Tampa General Hospital Loggerhead Triathlon in Carlin Park, Jupiter. Ocean swim plus scenic bike and run courses welcome individuals, relays and first timers aged 14 to 99.
Take on the Barron Lake Triathlon in Niles MI on Saturday August 22, 2026, with sprint and team relay options around scenic Barron Lake. Kid friendly races make this a great family event for new and experienced multisport athletes.
Join the Lake Meridian Triathlon in Kent, WA on August 22, 2026 with sprint, Olympic and super sprint races plus relay options. Spectator friendly venue, finisher medals and a finish line celebration make it great for athletes and families.
Challenge yourself with a sprint triathlon at scenic Don Carter State Park. Enjoy a time trial swim, a rolling 10.9 mile bike, and a two lap 5K run with options for duathlon, aquabike or relays for all ages.
Join the 370 Lakeside Triathlon on August 23, 2026 at 370 Lakeside Park in Saint Peters, MO for a beach start and scenic bike and run routes. Events range from super sprint to half distance and include a swim clinic the day before.
Join the RVA Sprint in Rockville, VA on August 23, 2026 for a pool swim, rolling rural bike and out and back run. Choose triathlon, duathlon, aquabike, relays, a beginner race for first time triathletes and a kids splash and dash.
Join the Sugar River Triathlon at Lake Belle View for a brisk sprint with a calm lake swim, rolling bike miles and a scenic 5K on gravel trails. Friendly vibe, finisher medal and tasty post race food.