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
2013 in tennis and Mike Bryan completed the "Bryan Slam" and became the first team to hold all four Grand Slams and the Olympic Gold at the same time. The 2013 US Open was a tennis tournament played on outdoor hard courts. It was the 133rd edition of the US Open and the final fourth Grand Slam event of the year. It took place at the USTA Billie Jean King National Tennis Center, and ran from August 26 to September 9. The Hopman Cup XXV (also known as the Hyundai Hopman Cup for sponsorship purposes) was the 25th edition of the Hopman Cup