Lefteris is Sports Science degree graduate from Kapodistrian university of Athens and an educator in a private fitness academy, teaching anatomy, kinesiology and strength training technique for Personal Trainers.
He has worked for the biggest clubs in Attika in the past and he if a former international presenter for conventions in 9 countries. Currently, Lefteris also works as a Strength and Conditiong Coach for Deree- The American College of Greece, training and guiding tennis, basketball and football athletes