Stefanie Maria Graf F, .mw-parser-output .IPA-label-small{font-size:85%}.mw-parser-output .references .IPA-label-small,.mw-parser-output .infobox .IPA-label-small,.mw-parser-output .navbox .IPA-label-small{font-size:100%}German: [ˈʃtɛfi ˈɡʁaːf] ⓘ; born 14 June 1969) is a German former professional tennis player. She won 22 major singles titles, the second-most in women's singles won since the start of the Open Era in 1968 and the third-most of all-time. In 1988, Graf became the first tennis player to achieve the Golden Slam by winning all four major singles titles and the Olympic gold medal in the same calendar year. She is the only tennis player, male or female, to have won each major singles tournament at least four times.