Glunder began practicing martial arts at the age of 18, with Kyokushin Kaikan and Taekwondo. He has black belts in both, as well as a blue belt in Brazilian Jiu Jitsu. He has won various Dutch, European and World Championships and has competed professionally as a Kickboxer and mixed martial artist under K-1, Pride, M-1, Cage Rage, Glory and many more.