- Coaching Ricardas Berankis.
Coaching Career Highlights
- Worked with Janko Tipsarevic, who reached #8 in the ATP Tour singles Rankings and played in two ATP Tour Finals in London as a Top-10 player.
- Worked for 20 years with Rainer Schuettler, who reached #5 in the ATP Tour singles Rankings, Olympic silver medalist, Australian Open finalist and Wimbledon semi-finalist.
- Worked 10 years with Lars Burgsmüller, Top 100 player for 10 years, 1 ATP Tour title (Copenhagen).
- Worked with Yen-Hsun Lu for 10 years, who reached the quarter-finals of Wimbledon.
- Worked with Danai Udomchoke, Kristian Pless, Jens Knippschild, Sergiy Stakhovsky and Vasek Pospisil.
- Davis Cup and Olympic coach for Taiwan.
- Spoke in different coach education schools around the world, including in Thailand, Taiwan and Germany.
- Dirk studied law and economics.
- He is the founder and CEO of Realstate Company Park Immobilien, Dozent; Board member of the Private University European Business School in Sports Marketing; former President of the Hessen Tennis Federation; former member of the ITF Committee European Davis Cup; and Vice President of the German Tennis Federation for High Performance Sport.