[['years led', 'span of years led', 'player', 'titles won at point of lead', 'total career titles', 'tournament at which lead began'], ['1877 - 1880', '4', 'spencer gore', '1', '1', 'wimbledon'], ['1880 - 1883', '4', 'john hartley', '2', '2', 'wimbledon'], ['1883 - 1887', '5', 'william renshaw', '3', '7', 'wimbledon'], ['1887 - 1925', '39', 'richard sears', '7', '7', 'us championships'], ['1889 - 1925', '37', 'william renshaw', '7', '7', 'wimbledon'], ['1911 - 1925', '15', 'william larned', '7', '7', 'us championships'], ['1925 - 1967', '43', 'bill tilden', '8', '10', 'us championships'], ['1967 - 2000', '34', 'roy emerson', '11', '12', 'australian championships'], ['2000 - 2009', '10', 'pete sampras', '13', '14', 'wimbledon']]
Pete Sampras Won 2 more Title when leading than Roy Emerson
[ENT] [ENT] 2 more [ENT] when leading than [ENT]