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
1981 Pepsi Grand Slam 1981 Pepsi Grand Slam The 1981 Pepsi Grand Slam was a men's tennis tournament played on outdoor clay courts in Boca Raton, Florida, USA The event was part of the 1981 Volvo Grand Prix circuit. It was the sixth edition of the tournament and was held from February 14 through February 15, 1981. Four–time winner and defending champion Björn Borg withdrew a day before the tournament began after coming down with the flu. He was replaced by Vitas Gerulaitis. John McEnroe won the singles title and $150,000 first prize money. This tournament was televised by CBS Sports immediately following their