2006-to date
Head Coach, TC Radolfzell (German women team champion 2010, 2011)
Players: Kerber, Bammer, Malek, Kucova

2011
Climber to 1. Bundesliga men team
Players: Berlocq, Schüttler, Knittel, Rieschick

1996-2000
ATP Tour-level full-time coach of Andrei Merinov

1999
WTA Tour-level part-time coach of Anna Kournikova (career high of No. 8 in singles, No. 1 in doubles)

2012
GPTCA C-Level International Coach, Munich, Germany 

2003
A-Level Coach, German Tennis Federation

1999
Tae Kwon Do Instructor, 4th Dan at WTF (World Tae Kwon Do Federation)