4 triathlon events in Town of Stony Point, New York

From big races to Saturday morning group runs—find triathlon events and connect with the local endurance sports community.

• Diamond Mountain Duathlon [runsignup.com]
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  Sun, Apr 26, 2026 at 1:00 PM

  Description

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  Welcome to Diamond Mountain Duathlon

  We're happy to announce our Diamond Mountain Duathlon taking place at the famous Harriman Park! Featuring stunning lake vistas and rolling hills for biking, it...

  Welcome to Diamond Mountain Duathlon

  We're happy to announce our Diamond Mountain Duathlon taking place at the famous Harriman Park! Featuring stunning lake vistas and rolling hills for biking, it offers an interesting route for each leg of the race. Rain or shine, the race will go on, so be sure to arrive early to familiarize yourself with the course and event setup.

  Race offers:

  Convenient start time

  Police controlled intersections

  Race photographers

  Course signage

  Race will be held rain or shine

  Please arrive in advance to get familiar with our course and race setup

  Race Date and time: April 26th, Sunday. 1.00PM start. 3.20PM cut off time. Awarding ceremony 10 minutes after we have top-3 Women finish.

  Race Location: Lake Welch Beach, 800 Kanawauke Rd, Stony Point, NY 10980. Only Kanawauke Rd entrance will be open before the event.

  Race course:

  Duathlon: Both runs are the same: 2 miles, Strava record is here. Biking is one 15-mile lap around the park, Strava record is here.

  Transition at Lake Welch picnic area. See maps on the bottom of the page.

  Registration for Triathlon and Duathlon: Check in begins 1 hour and ends 10 minutes before start time. Please sign up online to expedite the registration process and avoid potential errors.

  Registration for Bike Race: Registration page for Diamond Mountain Classic is published at BikeReg.com

  Race numbers for Duathlon: Jersey number should be placed on the front. Bicycle number goes either on the seat post (more aero) or on the top tube. Helmet number goes on the front.

  Race results: Draft results will be available as soon as last person finish, but not later than 3.30pm. Online results will include transition break downs and normally will be published within 48 hours.

  Awards: Top-3 Men and Women get medals and merchandise. Rest of participants get finisher medals.

  Photos: will be published within 48 hours at Verrazano Team Facebook page .

  9/21/25 Diamond Mountain Triathlon:

  By @bikerjun here

  By @photovelo.co here,

  4/27/25 Diamond Mountain Duathlon:

  By @bikerjun DM Duathlon, All Podiums

  By @photovelo.co here

  Bicycle requirements: Any type of bike you own is good for duathlon but be ready for rolling hills and make sure your brakes are good. No rental bikes available.

  Parking: Free public parking is easily available.

  Water/Restrooms/Trash: Water and trash bag will be available at check in table. Stationary restrooms will be open.

  About Us: Verrazano Team is a NYC based club organizing multisport and cycling events throughout the city. Our goal is to create safe, well organized, and welcoming races that support local athletes, juniors, and newcomers to multisport.

  19 Miles Cycling Duathlon Run Triathlon

  800 Kanawauke Road, Town of Stony Point, New York, 10980, United States
  OpenStreetMap Google Maps
• 2026 HarryMan Triathlon [redpointproductions.com] [Register at raceroster.com]
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  Sat, May 16, 2026 at 9:00 AM

  Description

  The HarryMan provides some of the best endurance challenges for the multi-sport athlete, and offers both "Half" Long Distance and Olympic distance events. HarryMan is one of the most challenging early-season courses in the North East. Redpoint Productions is happy to produce it again this year, and all race details can be found at

  www.redpointproductions.com/harrymantri

  51k Aquabike Cycling Relay Swim Triathlon

  800 Kanawauke Road, Town of Stony Point, New York, 10980, United States
  OpenStreetMap Google Maps
• Toughman 2026 [toughmantri.com] [Register at runsignup.com]
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  Sat, Sep 12, 2026 at 7:00 AM

  Description

  Lake Welch Beach, Stoney Point, NY

  Join us for one of our 7 events.

  TOUGHMAN Long Course Triathlon

  TOUGHMAN Long Course Aquabike

  TOUGHMAN Long Course Duathlon

  TOUGHMAN Long Course Relay National Championship

  TOUGHMAN Olympic Aquabike National Championship

  TOUGHKIDS Youth Regional Championship

  TOUGHMAN Olympic Triathlon

  Aquabike Cycling Duathlon Long Course Triathlon Swim Triathlon

  800 Kanawauke Road, Town of Stony Point, New York, 10980, United States
  OpenStreetMap Google Maps
• Diamond Mountain Triathlon [runsignup.com]
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  Sun, Sep 20, 2026 at 12:00 PM

  Description

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  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...

  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 PM

  Cutoff: 2:20 PM

  Awards: ~10 minutes after Top-3 Women finish (Triathlon + Duathlon)

  Race Location:

  Lake Welch Beach

  800 Kanawauke Rd, Stony Point, NY 10980

  Only the Kanawauke Rd entrance is open before the event (Exit 14 at Palisades Pkwy)

  Race course:

  Triathlon: 0.5mi swim in Lake Welch. Biking is one 15-mile lap around the park, Strava record is here. 2 mile run, Strava record is here.

  Duathlon: Both runs are the same: 2 miles, Strava record is here. Biking is one 15-mile lap around the park, Strava record is here.

  Transition at Lake Welch picnic area. See maps on the bottom of the page.

  Registration for Triathlon and Duathlon:

  Check-in opens 1 hour before start and closes 20 minutes before start.

  Online registration is recommended — it keeps things smooth and helps avoid mistakes at the table.

  Bike Race Info:

  Interested in the cycling race at the same venue?

  Registration for the Diamond Mountain Classic is at:

  BikeReg.com/DMC

  Note: you can participate only in one race since they're running simultaneously

  Race numbers

  Jersey number should be placed on the front. Bicycle number goes either on the seat post (more aero) or on the top tube. Helmet number goes on the front. Registration desk has markers to draw a number on the left arm and leg for your swim.

  Race results: Draft results will be posted shortly after the last finisher (no later than 2:45 PM).

  Official online results (with transition splits) are normally available within 48 hours.

  Awards: Top-3 Men and Women for each race get medals and merchandise. Age group awards will be offered if turnout meets minimums. Rest of participants get finisher medals.

  Overall Man and Woman triathlon winners get special triathlon suit with race logo as an award.

  Photos: will be published within 48 hours at Verrazano Team Facebook page .

  9/21/25 Diamond Mountain Triathlon:

  By @bikerjun here

  By @photovelo.co here,

  4/27/25 Diamond Mountain Duathlon:

  By @bikerjun DM Duathlon, All Podiums

  By @photovelo.co here

  Swim notes: Wetsuits welcome.

  Body marking on the left arm & leg helps timers during swim exit.

  Bicycle requirements: Any bike is fine — just make sure it’s in safe working condition and suited for rolling terrain. No rental bikes will be available.

  Facilities:

  Free parking

  Open restrooms

  Water available at check-in

  Trash bags provided

  About Us: Verrazano Team is a NYC based club organizing multisport and cycling events throughout the city. Our goal is to create safe, well organized, and welcoming races that support local athletes, juniors, and newcomers to multisport.

  17.5 Miles 19 Miles Cycling Duathlon Run Swim Triathlon

  800 Kanawauke Road, Town of Stony Point, New York, 10980, United States
  OpenStreetMap Google Maps