Giorgos Mpouskos, student of Athens College High School 1, competed in the following championships:

• The Panhellenic Tennis Tournament E3 for Boys U16, held in Ilioupoli, on October 18-21, 2024, 42nd week (IA), and won 3rd place in singles.
• The Panhellenic Tennis Tournament E3 for Boys U16, held in Ilioupoli on March 14-17, 2025, 11th week (IA), and won 1st place in singles.