Aleš Filipčič was the first Slovenian captain in the Davis Cup. Since 1989 he has coached several national champions, ITF, WTA and ATP players as a club or personal coach. He was head coach in 3 Slovenian tennis clubs: TK Olimpija Ljubljana (1998-1993), TK Triglav Kranj (1998-2004) and Tennis Center Ljubljana (2010-2020). He is a full professor at the Faculty of Sport of the University of Ljubljana, where he has been responsible for the education of tennis students since 1990. His main research interests include tennis performance analysis, motor behavior, and testing and monitoring of tennis players. He is the author of several books on tennis, sports science, and peer-reviewed scientific articles. For more than 20 years he was the President of the Coaches Organization and Professional Council of the Slovenian Tennis Association of Slovenia. Since 2004 he has participated as an international tutor in educational projects for Internationa Tennis Federation. He has conducted more than 150 coach courses on five continents and in 23 countries. Since 2015 he is co-founder of Biometrika, the company that developed the Armbeep Tennis System (High Performance Data Analytic Tool; www.armbeep.com).