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
2015 Andy Murray tennis season Steve Darcis and David Goffin, before defeating Goffin again in the reverse singles on Sunday, thus ensuring a 3-1 victory for Great Britain, their first Davis Cup title since 1936. Murray also became only the third person since the current Davis Cup format was introduced to win all eight of his singles rubbers in a Davis Cup season, after John McEnroe and Mats Wilander. Murray's 2015 singles tournament schedule was as follows: "Ordered by number of wins" 2015 Andy Murray tennis season The 2015 Andy Murray tennis season began at the Australian Open. Murray was the defending champion at the