Grand Slam (tennis) tennis ball, Martina Navratilova finally did it." Although the ITF recognizes what is now unofficially known as the "non-calendar year Grand Slam" on its Roll of Honour, no subsequent player to win four or more majors in a row—Steffi Graf, Serena Williams, or Novak Djokovic—has received bonus prize money. Combining "the" Grand Slam and non-calendar year Grand Slam, the total number of times that players achieved the feat (of being the reigning champion in all four majors) expands to 18. Three women have won four or more consecutive major titles since 1970, with Navratilova taking six in a row in
Grand Slam (tennis) a unique partner. The latter are listed first, as seven teams, ignoring any major wins with other partners. Eight of the 21 men achieved at least a double Career Grand Slam at Men's Doubles, led by Roy Emerson and John Newcombe with triple Slams. At Women's Doubles, 21 players have won the career Slam, including ten who achieved the Career Grand Slam with a unique partner. Nine of the 21 achieved at least a double Career Grand Slam at Women's Doubles, led by Martina Navratilova with seven or more titles in each major. At Mixed Doubles, a total of 17