Ant. Hakan Ertuğrul (MMA Federation Istanbul Representative) Our instructor has competed in 16 professional Kickboxing matches and is currently the MMA Federation Istanbul Representative. Our instructor, who teaches Muay Thai, Kickboxing, Brazilian Jiujitsu, and Hapki-Do in our club, is also an international Hapki-Do referee. Our instructor, who is also the founder of our club, teaches courses at various universities and serves as an official trainer for university clubs.