Ranking: #12
Best: #8

Top 100 players - Grigor Dimitrov doesn't have win yet

Roger Federer

Switzerland

Ranking: 4
Date: 1981-08-08
Turned Pro: 1998
Wins/Losses: 0-5 (5)

Jo-Wilfried Tsonga

France

Ranking: 11
Date: 1985-04-17
Turned Pro: 2004
Wins/Losses: 0-4 (4)

Juan Martin Del Potro

Argentina

Ranking: 33
Date: 1988-09-23
Turned Pro: 2005
Wins/Losses: 0-4 (4)

Thomaz Bellucci

Brazil

Ranking: 54
Date: 1987-12-30
Turned Pro: 2005
Wins/Losses: 0-3 (3)

Aljaz Bedene

Slovenia

Ranking: 68
Date: 1989-07-18
Turned Pro: 2008
Wins/Losses: 0-1 (1)

John Isner

United States

Ranking: 24
Date: 1985-04-26
Turned Pro: 2007
Wins/Losses: 0-1 (1)