Diamond Mountain Triathlon

Welcome to Diamond Mountain Triathlon

Day of registration is available!

We're happy to announce our Diamond Mountain Triathlon taking place at the famous Harriman Park! Featuring stunning lake vistas and rolling hills for biking, it offers an interesting route for all: swimming, biking and running. 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

Overall 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 Date and time: September 20st, Sunday. 12.00PM start. 2.20PM cut off time. Awarding ceremony 10 minutes after we have top-3 Women finish for both: triathlon and duathlon.

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

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 begins 1 hour and ends 20 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/DiamondMountain

Race numbers for Triathlon and 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. Registration desk has markers to draw a number on the left arm and leg for your swim.

Race results: Draft results will be available as soon as last person finish, but not later than 2.30pm. Online results will include transition break downs and normally will be published within 48 hours.

Awards: Top-3 Men and Women for each race get medals and merchandise. 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 requirements: Please write your race number with a Sharpie on your LEFT arm and leg before the swim. Wetsuits are welcome. At the transition gate, make sure to shout your number clearly (or at least your name if you forget your number) to the timer with the laptop so your time is recorded.

Bicycle requirements: Any type of bike you own is fine for the race, but be prepared for rolling hills and make sure your brakes are in good condition. No rental bikes will be 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 was born in 2015 from the visionary passion of Alex Kochatau. Since our inception, we've been igniting the competitive spirit in New York City. In 2018, we start organizing thrilling bicycle races that have left participants craving more adrenaline. Building on our success, we partnered with a local triathlon club in 2021 to bring the excitement of triathlons to the bustling streets of NYC. In 2024, we're unleashed our own multisport events, fueling the city's appetite for challenge and adventure. Join us as we carve new paths, push boundaries, and elevate the multisport experience for all.