As a coach, John is highly regarded and many of his players have achieved success at both amateur and professional level. Some of these players include:

John's extensive coaching experience in Korea, New Zealand and Australia has allowed him to develop skills to assist players of all ability levels. In particular, he is able to provide young Korean golfers with holistic programs that fully develop the technical, physical, mental and strategic aspects of their games and in doing so provide the foundations of building a career as a professional golfer.