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) players have won the career Slam, including seven who won all four events with the same partner — an odd number because Margaret Court accomplished a career Grand Slam separately with Ken Fletcher and Marty Riessen. The two other teams which won all four events are Doris Hart with Frank Sedgman, and Martina Hingis with Leander Paes. Four of the 17 players have accomplished multiple career Grand Slams in mixed doubles, led by Margaret Court's quadruple Slam. Helen Wills Moody won all 16 of the Grand Slam singles tournaments she played beginning with the 1924 U.S. Championships and extending to