Panagiotis Efstathiou started Aikido in 1989 at the Technical University of Athens, Greece, under the technical supervision of Alexis Pappas and Maria Marinerou. Since 1991 he has trained at the Aikido of Athens dojo, being the most senior active member. He currently holds the rank of 6th Dan in Aikido is also a Level 2 (Dec 2023) instructor of the MDS (Mastro Defense System) self-defense system..
