Stony Brook
Triathlon Calendar near Stony Brook 2026-2027
Monthly updates for Stony Brook
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Stony Brook for 2026-2027! We've gathered 9 exciting races in the area. Check out our detailed list below to find your next local race.
September 2026
A swim and run event on September 12, 2026 at Eisenhower Aquatic Center in East Meadow, NY supporting the charity Wubbanubs From Jaxson.
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.
IRONMAN 70.3 New York is a half distance triathlon at Jones Beach with a protected swim in Zachs Bay, a fully closed 56 miles bike and a run on the Jones Beach Boardwalk.
A community triathlon at Compo Beach on September 27, 2026 with a point to point swim, flat neighborhood bike and run courses, awards and post race activities.
Monthly updates for Stony Brook
Get new running races (and updates) in your inbox every month.
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
Triathlon at Pinewood Lake in Trumbull CT with a one mile swim, a 25 mile out and back bike, and a five mile hilly run; proceeds support the Cardinal Sheehan Center.
July 2027
Jamesport Triathlon features a 500 m swim in Peconic Bay, a 25K bike ride and a 5K run with individual, relay, AquaBike, charity and virtual options.