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You can reach us by phone at 516-415-5022 or send us a direct email to operations@trioneon.us.

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 Tri One On® - The Hempstead Harbor Tri
Sunday June 18, 2017
Port Washington, NY
On the site of The Long Island Gold Coast Triathlon™
 
Triathlon- Swim 500 meters, Bike 10.5 miles Run 3 miles 
 
 
Duathlon-Run 1.1 miles, Bike 10.5 miles, Run 3 miles
 
 

We are happy to announce that the Duathlon option is back!!   This option is limited to the first 100 people to register for coordination and safety it is imperative that we limit this field.  The Triathlon is also limited to 500 so don't delay register today!!

Calling all volunteers!

Volunteers are the key to any successful event. Please click here to sign up.

 If you are an athlete and are able to provide a volunteer that will work the full race have them register using the link above then email This email address is being protected from spambots. You need JavaScript enabled to view it.
Your entry will then be free.
 

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 2016 Results are posted at:
 

Thank you to 631 and our sponsors all race photos are FREE for you to download. http://www.631films.com/TRIONE/TRI-ONE