Instructor

Grand Master Kay Kim holds a Bachelor's degree in Sports Science from South Korea, where he built the foundation of a martial arts career spanning more than three decades. In the early years of his career, he represented South Korea as a Taekwondo demonstration performer, traveling to 27 countries to showcase the art on the world stage.

Back in Korea, he simultaneously operated a Taekwondo school, a Hapkido school, and evening Jiu-Jitsu classes for over a decade. As a certified member of the Korean Hapkido Federation, he hosted dozens of seminars for instructors and law enforcement officers, covering self-defense and weapons training.

A true early adopter of Brazilian Jiu-Jitsu in Korea, Grand Master Kay Kim began his BJJ and MMA training in 2008 — at a time when the art was just emerging in the country. After relocating to the United States, he went on to amass over 15 years of teaching experience, performing in 3 major-league Taekwondo demonstration events, public and private school demonstrations, and nearly 100 community events.

Following three years in New York and a decade running a school in Tenafly, NJ, Grand Master Kay Kim established One Taekwondo in Paramus, NJ, where he has been developing the next generation of martial artists for the past 6 years. Today, One Taekwondo spans five branch locations, led by top-tier instructors who maintain a unified standard of excellence through continuous research and weekly collaboration.

One Taekwondo is a proud member of Kukkiwon, the official World Taekwondo headquarters in Seoul, Korea, and all black belt certifications are fully recognized and internationally accredited.