Stony Brook
Triathlon Calendar near Stony Brook 2026-2027
Monthly updates for Stony Brook
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Explore the top triathlons near Stony Brook for 2026-2027! We've gathered 11 exciting races in the area. Check out our detailed list below to find your next local race.
August 2026
Experience a USAT sanctioned sprint triathlon featuring a 500 meter swim in Narrow Bay and a scenic 5K run ending at the Atlantic Ocean. This multisport event offers individual, relay, and AquaBike categories at Smith Point County Park.
A multi-event weekend at Theodore Roosevelt Memorial Park featuring a main triathlon with a 1/2 mile swim, 12.3K bike loop and 5K run, plus relay, AquaBike, BikeRun and two junior race distances.
September 2026
A combined 1500 m swim and 5.1 km run with a relay option on September 12, 2026 at Eisenhower Aquatic Center in East Meadow, NY. Event proceeds benefit the Wubbanubs From Jaxson charity.
TOUGHMAN Westchester at Rye Playland on September 19 to 20, 2026 features Olympic triathlon, aquabike, duathlon, an open water mile swim and youth triathlon events. Olympic distances include a 1.5 km swim, 40 km bike and 10 km run.
Sea Cliff Triathlon on 09/19/2026 takes place at Harry Tappen Beach and offers individual, youth, and several relay formats with swim, bike, and run legs and specified team rules and fees.
A triathlon at Jones Beach featuring a protected swim in Zach's Bay, a flat 56 mile closed bike course on Wantagh Parkway, and a run along the Jones Beach Boardwalk by the Atlantic Ocean. Scheduled for September 26, 2026.
October 2026
A fall run, bike, run duathlon at Cedar Creek Park in Seaford, NY, featuring 1.1 mile runs and 11 miles of closed-road cycling. Individual, relay, family and virtual options are available with specific family relay rules.
April 2027
A run, bike, run duathlon at Cedar Creek Park in Seaford, New York on April 10, 2027. The course has two 1.1 mile runs and an 11 mile bike made of four closed-road loops, with individual, relay, junior and virtual options.
May 2027
BoFish Triathlon at Pinewood Lake in Trumbull, CT combines a 1-mile swim, a 25-mile out-and-back bike and a 5-mile hilly run around the lake. Proceeds support the Cardinal Sheehan Center and the event offers live results and race photos.