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) a unique partner. The latter are listed first, as seven teams, ignoring any major wins with other partners. Eight of the 21 men achieved at least a double Career Grand Slam at Men's Doubles, led by Roy Emerson and John Newcombe with triple Slams. At Women's Doubles, 21 players have won the career Slam, including ten who achieved the Career Grand Slam with a unique partner. Nine of the 21 achieved at least a double Career Grand Slam at Women's Doubles, led by Martina Navratilova with seven or more titles in each major. At Mixed Doubles, a total of 17