Ahmetcan ERŞİMŞEK
Volleyball
Maritza Plovdiv VC
Date ofBirth: May 13, 1992
Country: Türkiye
Profession: Coach
Mehmet Ayberk Koşak was born in 2001 in İzmir, Türkiye. He began gymnastics at the age of six, following the recommendation of family friends. Recognized early for his talent, he quickly progressed to a professional level. At the Turkish Championships, he has won a total of five gold, seven silver, and six bronze medals. In 2021, he joined Göztepe Sports Club as an athlete. Representing the Turkish National Team at the 2022 and 2023 European Championships, he earned both silver and bronze medals. Specializing in the rings, Mehmet Ayberk Koşak achieved two silver medals at the 2023 World Challenge Cups in Varna and Mersin.
In 2025, he won back-to-back bronze medals on rings at the World Cups in Cottbus and Antalya, and later earned a silver medal on rings at the World Challenge Cup in Tashkent. He capped off his achievements with a gold medal on rings at the World Challenge Cup Final in Szombathely, Hungary.
Coaching Career Achievements:
2024/2025 - Bulgarian Volleyball League Champion
2024/2025 - Undefeated championship in the Bulgarian Volleyball League with Maritza Plovdiv VC
2024/2025 - Bulgarian Cup Champion
Assistant Coaching Career Achievements:
x1 European Championship Silver Medal (2023)
x1 Mediterranean Games Silver Medal (2022)
x1 Islamic Solidarity Games Title (2022)
x1 USA Volleyball Cup Silver Medal (2022)
x4 CEV Champions League Titles (2023, 2022, 2018, 2017)
x3 FIVB Club World Championship Titles (2021, 2018, 2017)
x4 Turkish League Titles (2022, 2021, 2019, 2018)
x1 CEV Champions League Silver Medal (2021)
x2 FIVB Club World Championship Silver Medal (2023, 2022)
x1 CEV Champions League Bronze Medal (2019)
x1 FIVB Club World Championship Bronze Medal (2019)
x4 Turkish Cup Titles (2023, 2022, 2021, 2018)
x3 Turkish Super Cup Titles (2023, 2021, 2017)