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) Mirza together with Hingis had won from Wimbledon 2015 to the 2016 Australian Open, but lost in the third round of the 2016 French Open to Barbora Krejčíková and Kateřina Siniaková. In 2017, Bethanie Mattek-Sands and Lucie Šafářová had the chance to win four consecutive titles at Wimbledon, but withdrew from their scheduled second round match following an acute knee injury suffered by Mattek-Sands in the second round of the Ladies' Singles competition. The following list is for those players who achieved a non-calendar Grand Slam by winning four or more consecutive titles, but who failed to win the Grand