Diamond Mountain Triathlon – Stony Point, NY 2026
Date
September 20, 2026
Location
Stony Point, NY
Venue
800 Kanawauke Rd
Start Time
12:00 PM
Events
Adult Triathlon (0.5mi/15mi/2mi), Adult Duathlon (2mi/15mi/2mi), Junior Triathlon (0.5mi/15mi/2mi), Junior Duathlon (2mi/15mi/2mi)
Register NowRegistration Open
Welcome to Diamond Mountain Triathlon, hosted in the scenic heart of Harriman State Park. The course features a calm lake swim, a rolling 15-mile bike loop with spectacular views, and a fun lakeside run to the finish. The event is beginner-friendly while still rewarding strong competitors. Rain or shine, we race — and we’re excited to share the course with you. What the event offers: Relaxed and convenient midday start Police-controlled intersections Course signage and volunteer support Race photographers Free public parking Junior athletes race Duathlon with adults for free Junior athletes race Triathlon for free and may have a separate start Finisher medals for all participants Awards for Top-3 Men & Women in both Triathlon and Duathlon Overall Adult Triathlon Winners are getting champion suit: Free jersey for Triathlon participants: Duathlon participants are getting running jersey Follow our race at @Diamond_Mountain_Races Race Schedule Date: Sunday, September 20 Start Time: 12:00 P
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