Steffi Graf Steffi Graf Stefanie Maria "Steffi" Graf (; born 14 June 1969) is a German former professional tennis player. She was ranked world No. 1 and won 22 Grand Slam singles titles. Her 22 singles titles put her second on the list of major wins in the female competition since the introduction of the Open Era in 1968 and is third all-time behind Margaret Court (24) and Serena Williams (23). In 1988, she became the only tennis player to achieve the Golden Slam by winning all four Grand Slam singles titles and the Olympic gold medal in the same calendar year.
Grand Slam (tennis) achieving the Career Grand Slam: Only six players have completed a Career Grand Slam in both singles and doubles: one male (Roy Emerson) and five female (Margaret Court, Doris Hart, Shirley Fry Irvin, Martina Navratilova, and Serena Williams). Court, Hart and Navratilova are the only three players to have completed a "Career Boxed Set", winning all four titles in singles, doubles, and mixed doubles; this has never been done by a male player. The remainder of this section is a complete list, by format, of all players who have won the Career Grand Slam. Players are ordered chronologically by their