Lefteris Petrounias He was born 30 November He is the 2016 Olympic champion, 2020 Olympic bronze medalist, three-time World champion 2015, 2017, 2018 and a six-time 2011, 2015–18, 2021, European medalist on the still rings six gold and one bronze. He was named the Greek Male Athlete of the Year for the years 2015, 2016, 2017, and 2018.

Petrounias grew up as a hyperactive child, and at the age of five, his mother brought him to the Panionios Gymnastics Club so that he could release his energy. Besides gymnastics, he practices parkour. He takes part in anti-bullying campaigns, as he was bullied himself when he was child due to his small size European Championships Petrounias's debut major international medal came when he competed at the 2011 European Artistic Gymnastics Championships in Berlin at the age of 20. Petrounias at the 2015 Europian Championships in Montpellier, France.

2016 European Championships, Petrounias attended the 2016 Europian Artistic Gymnastics Championships in Bern, Switzerland. At the 2016 Summer Olympics in Rio de Janeiro Petrounias qualified for the rings final in second place with a score of On 15 August 2016 he won the gold medal in this event with a score of , points higher than the silver medal winner. 1 st junior high school of Markopoulo.