Olexandr Lavreniuk has been studying hand-to-hand combat and Martial Arts since 1989.
He used to practice jiu-jitsu and traditional karate, kickboxing (Warsaw, Poland), Muai Thai and Greco-Roman wrestling.
He has been studying Combatives and krav maga since 2009.
He is an instructor of bodybuilding and strength training.
UCF first (Intro) level instructor.