August 2020-to-date 
Coaching Sebastian Ofner (ATP career high ranking no.37)

2018-to-date
RS - Tennis & Athletics - Tennis Academy in Bruck/Mur and Kindberg

2018-2020 
Athletic Coach, SV Kapfenberg (Club in Austria) 2.Division

2019
Coaching Austrian national team EYOF (European Youth Festival) U16 in Baku

2018
Coaching Austrian national team U16 in Moskau - European Champions Doubles

2017-2018 
Athletic & Tennis Coach for the Austrian Tennis Federation

February-August 2015 
Coached Melanie Klaffner

Playing Career

ATP career high ranking in singles: 1274
 
Player 1.Division Austria

2017/2018
Tennis Coach Austria (A-Level)

2017
Slingtrainer Austria

2016/2017
Fitness & Athletic Coach Austria (A-Level)

2016
Diplom „Training- & Sportmanagement

2013/2014
Tennis Teacher Austria (B-Level)

2013
Tennis Instructor Austria (C-Level)

2012
Higher School Certificate

Academic

2017
Bachelor of Science in Natural Sciences (BSc), Wiener Neustadt, Austria

Stefan Rettl

Tennis & Athletics e.U.  
Email: office@rs-tennis.at 
Phone no.: +436649314835 
Website: www.rs-tennis.at