Athens College High School 1 student Katerina Zafiri participated in the following championships:

• The A' Class Air Rifle Competitions Championships, in the Young Women's category, held at the National Shooting Range of Vyronas, on November 2, 2024 and won 1st place in the Air Rifle Solo.
• The MC' Autumn A' Class Air Riffle and Airgun Youth Games, held at the National Shooting Range of Vyronas on November 9, 2024 and won 3rd place in Air Riffle, 3rd place in 0.22 Women's Riffle and 5th place in Air Pistol. 
• The Inter-club A' Class Games Athlos, in the Young Girls Category, held at the National Shooting Range of Vyronas on January 19, 2025, and won 2nd place in the Air Riffle Solo and 4th place in the Air Pistol Solo. 
• The “Grand Prix Sofia and New Olympic Hopes 2025” , held in Sofia Bulgaria from January 31 to February 2, 2025 as a member of the Greek national team and won 4th place in 10m Air Rifle Women Junior, 10th place in 10m Air Rifle Mixed Team και 13th place in 10m Air Rifle Super Cup. 
• The 2025 European Airgun Championship held in Tallin Estonia on February 9-15, 2025 as a member of the Greek national team in the U16 category and ranked: 

-7th in 10m Air Riffle Solo

-9th in 10m Air Riffle Duet

-10th in 10m Air Riffle Trio