Ivan Lendl has a record.
Ivan Lendl . He won two WCT Finals titles and five Masters Grand Prix titles , with the record of nine consecutive finals . He also won a record 22 Grand Prix Super Series titles ( 1980 -- 89 ) , the precursors to the current ATP Masters 1000 . He finished four years ranked as the world 's top player ( 1985 -- 1987 and 1989 ) 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 .