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) (initially "Golden Grand Slam") was coined in 1988. Only one player has completed the Golden Slam: Winning four consecutive Grand Slam tournaments and Olympic event in the period of twelve months, although not in the same year, is called a "Non-calendar year Golden Slam". Only Bob and Mike Bryan have achieved this by winning the 2012 Olympics, 2012 US Open, 2013 Australian Open, 2013 French Open and 2013 Wimbledon Championships. After they won the final at Wimbledon, this was coined the "Golden Bryan Slam". A player who wins all four Grand Slam tournaments and the Olympic gold medal during his