Top 9 players who reached 100th week at No.1 in ATP rankings

Novak Djokovic 100 weeks

Andre Agassi 101 weeks

Rafael Nadal 102 weeks

Bjorn Borg 109 weeks

John McEnroe 170 weeks

Jimmy Connors 268 weeks

Ivan Lendl 270 weeks

Pete Sampras 286 weeks

Roger Federer 302 weeks