Athens College High School Junior, Andreas Papageorgiou, participated with his team in the:

• Panhellenic Men’s Junior (Neon Andron) Water Polo Championship that took place in the municipal pool of Nea Smyrni on August 1, 2021 where they took 3rd place.
  
  
• Panhellenic Men’s Junior (Efivon) Water Polo Championship that took place in the municipal pool of Ilioupolis on August 8, 2021 where they took 2nd place.