Ivan Lendl was ranked No. 1 for a total of 270 weeks.
He finished four years ranked as the world 's top player -LRB- 1985 -- 1987 and 1989 -RRB- and was ranked No. 1 for a total of 270 weeks and set a new record previously held by Jimmy Connors , since broken by Pete Sampras and Roger Federer .	1989	1989 Australian Open  Men's Singles	1987	1987 Nabisco Masters  Singles	1985	1985 Buick WCT Finals - Singles	Roger Federer	Roger Federer	Pete Sampras	Pete Sampras	Jimmy Connors	Jimmy Connors
