Alek DuricHigh Performance Tennis

Team

Seven coaches. One standard.

Head coach Alek Đurić, five tennis coaches and one athletic coach – a team working to the same programme: technique, match play, athletics.

Alek Đurić, head coach, smiling in a blue training shirt at the indoor courts

Head Coach & founder

Alek Đurić

Alek Đurić founded High Performance Tennis and runs it as head coach. He coaches himself – from a child's first session with red balls to competition preparation at performance level.

His qualifications cover exactly that range: as a state-certified ÖTV tennis teacher he is qualified to run a tennis school and to coach competitive players; as a WTV Kidscoach and a coach for the U10–U16 age groups, to work with children and juniors in an age-appropriate way. On top of that come the international PTR PRO certification and the A Level of the GPTCA, whose coaching qualification is certified by the ATP.

Under his leadership, High Performance Tennis is an official partner school of the state coaching qualification at the Bundessportakademie Vienna.

  • ÖTV-Lehrer
  • WTV Kidscoach
  • PTR PRO
  • Trainer für U10–U16
  • GPTCA A Level
What the qualifications mean

Qualifications explained

What's behind the abbreviations.

The head coach's qualifications in one sentence each – so you know what they mean for your training.

ÖTV-Lehrer
The state tennis teaching qualification of the Austrian Tennis Federation and the Bundessportakademie – the level that qualifies its holder to run a tennis school and to coach competitive players.
WTV Kidscoach
Qualification of the Vienna Tennis Federation for children's tennis – age-appropriate methodology in theory and on court.
PTR PRO
Certification by the Professional Tennis Registry, an internationally recognised organisation for tennis coaching and coach education.
Trainer für U10–U16
Coaching qualification for the U10 to U16 age groups – from children's tennis to junior competition.
GPTCA A Level
The highest of the three levels of the Global Professional Tennis Coach Association (GPTCA), whose coach education is certified by the ATP.

Coaching team

The team on court.

  • Ante Nakić Alfirević, tennis coach, with cap and racket on the clay court

    Tennis Coach

    Ante Nakić Alfirević

    Ante Nakić Alfirević is part of the coaching team that runs the four groups together with the head coach.

  • Tarik Mustafič, tennis coach, mid-stroke with his racket raised on the clay court

    Tennis Coach & ÖTV Instructor

    Tarik Mustafič

    Tarik Mustafič has played tennis since the age of nine; from twelve he trained with Alek Đurić at performance level. He has been coaching in the team himself since 2022.

    As an ÖTV instructor he coaches children, juniors and adults. His focus is technique – clean execution – and, depending on the level of play, strategy. What matters to him is that players enjoy their time on court and take something away that they put into practice in the next session.

    He has played for several Vienna clubs, including Tenniszentrum Arsenal, First Vienna Club and WAT Landstraße: two years for Hakoah in Landesliga A and currently for WAT Landstraße in Landesliga B. He coaches in German, English and Bosnian/Croatian/Serbian.

  • Almir Damadzic, tennis coach, smiling in the indoor hall

    Tennis Coach & ITF Level 1

    Almir Damadzic

    Almir Damadzic has played tennis since the age of six and has been active in the sport for more than 30 years. He has been coaching players for over 15 years.

    He has added theory to his practice on court: with a master's degree programme at the Faculty of Kinesiology, where he also worked as an assistant for more than five years. On top of that comes the official ITF Level 1 coaching licence of the International Tennis Federation.

    He coaches in German, English, Spanish and Croatian/Serbian/Bosnian.

  • Moris Ahmetasevic, tennis coach, at the indoor courts

    Tennis Coach

    Moris Ahmetasevic

    Moris Ahmetasevic runs the groups together with the head coach.

  • Jonas Zarić, tennis coach, at the indoor courts

    Tennis Coach & Kidscoach

    Jonas Zarić

    Jonas Zarić also knows High Performance Tennis from the other side of the net: he has trained with Alek Đurić as a player since 2017 and has been coaching as well since 2025. He still plays tournaments and league matches himself.

    As a qualified Kidscoach, he most enjoys working with children. What matters to him is fun, progress and enjoyment.

    Jonas grew up in Vienna, has Bosnian roots and is studying mathematics. He coaches in German, English and Serbian/Bosnian/Croatian.

    Instagram(opens in a new window)
  • Roland Repasi, athletic coach, smiling at the indoor courts

    Athletic Coach

    Roland Repasi

    Roland Repasi is responsible for the players' athletic development: mobility, coordination, strength and speed – matched to the tennis training and, at performance level, a fixed part of the programme.

Bundessportakademie Vienna

Official partner school of the state coaching qualification.

The Bundessportakademie (BSPA) Vienna trains Austria's state-certified tennis instructors, teachers and coaches. High Performance Tennis is an official partner school of that qualification.

Seal of the Bundessportakademie Vienna: official partner school of the state tennis coaching qualification