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) Federation designated the Australasian, French (before 1925 only open to members of French tennis clubs), British and American championship tournaments as the four majors. Before that time only three events: Wimbledon, the World Hard Court Championships (held in Paris & once in Brussels) and the World Covered Court Championships (held in various locations) were considered the premier international tennis events by the ILTF. Tony Wilding of New Zealand won all three of those earlier majors in one year: 1913. It has been possible to complete a Grand Slam in most years and most disciplines since 1925. It was not possible