As a professional teacher of Saario Academy Istvan educates Defendo, Krav Maga and Safe Kid instructors. He is the owner of a Warsaw located self-defence club, which is one of the Saario Academies HQ.
Istvan has started martial arts in 1987. He was the pioneer of Krav Maga in Hungary as he has organized the absolutly first seminar in Budapest (Istvan has been the training Krav Maga since 2001).
After he had met master Jyrki Saario, Istvan started learning fighting arts only from him. He has brought Jyrki Saario Defendo to Poland, he was one of the founding members of Classic Krav Maga and of Safe Kid training.
Today Istvan is one of the international leaders of Saario Academy, chief instructor and director of Poland.