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
Olympic Tennis Centre (Rio de Janeiro) to win all four Grand Slam doubles titles in one year. This also marked the first ever event to be held at the Barra Olympic Park, which saw 75 Brazilian tennis players take part in a competition. Olympic Tennis Centre (Rio de Janeiro) The Olympic Tennis Centre () is a tennis venue located in the Barra Olympic Park in Barra da Tijuca in the West Zone of Rio de Janeiro, Brazil. The centre hosted tennis events of the 2016 Summer Olympics, and the wheelchair tennis events of the 2016 Summer Paralympics. The centre was built on the site of the