Kai was born in Germany and holds a master’s degree in Nautical Engineering from the University of Oldenburg in Germany. He has been involved in professional sports, first as a competitor and then as a coach and trainer. 

Kai implemented his workout philosophy to train for many years undoubtedly one of the best athletes ever to play the game, Annika Sorenstam, amassing 72 wins worldwide and 10 majors. Accumulatively his golfers have won 15 Major Championships and over 150 tournaments on the LPGA, PGA, European Tour and Japanese LPGA. 

Kai is also a certified facilitator for the Pacific Institutes Investment in Excellence course which teaches to develop the right attitude for success through cognitive psychology. Kai is frequently invited to share and teach his program for the LPGA, German PGA as well as Universities and expert summits. He has been featured in many media outlets like Golf Magazine, Golf World, Japanese Golf Digest, German Golf Journal, Golf Fitness Magazine, Waterski Magazine, ESPN, USA Today, 60 Minutes, Golf Channel and more. 

Kai has authored “Weight Training for Golf: The Ultimate Guide” and “Weight Training for Women’s Golf” the most comprehensive books for golf fitness. Also, Kai produced the best- selling 8-DVD series “Kai Fitness for Golf”.