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 can play anyone around the world. Ranked earns the player points when they beat someone and these points decide what overall ranking you are in the world. Unranked matches are friendly and do not earn any points for the player's online profile. It is good for people who are preparing to hit the leaderboards. When players win ranked matches they do not only win points for themselves but also for their country. There is a national leaderboard which shows which country has the best players. Grand Slam Tennis has generally received average to positive reviews, with a Metacritic average of