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) in a particular tennis discipline. The year shown for each of the four majors is the year that particular major win was repeated as part of that player's achievement of their second (all 22 players) and third (8 players) and fourth (4 players) and fifth through seventh (Martina Navratilova, in women's doubles) complete slam set of major wins. For example, the fourth row shows that Margaret Court completed her third career slam set in Women's Singles—winning each of the four majors three times—during the 1970 Wimbledon Championships (bold). More specific, she won: Australian open 11 times, the third in 1962;