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) the championships of Australia, France, the United States of America and Wimbledon. Players who hold all four of these titles in one calendar year achieve the 'Grand Slam'." When Martina Navratilova won the 1984 French Open and became the reigning champion of all four women's singles events, she was the first player to receive the bonus prize in recognition of her achievement. Some media outlets did, indeed, say that she had won a Grand Slam. Others simply noted the ongoing controversy: "Whether the Slam was Grand or Bland or a commercial sham tainted with an asterisk the size of a