Claim: Ivan Lendl was ranked No. 1 for a total of 270 weeks, starting in January 2010.
Evidence: 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.