Diamond Mountain Triathlon

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 startPolice-controlled intersectionsCourse signage and volunteer supportRace photographersFree public parkingJunior athletes race Duathlon with adults for freeJunior athletes race Triathlon for free and may have a separate startFinisher medals for all participantsAwards 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 20Start Time