Billie Jean King New York City and Chicago with Kloss, her life partner. 18 finals (12 titles, 6 runner-ups) Singles Billie Jean King Billie Jean King ("née" Moffitt; born November 22, 1943) is an American former World No. 1 professional tennis player. King won 39 Grand Slam titles: 12 in singles, 16 in women's doubles, and 11 in mixed doubles. She won the singles title at the inaugural WTA Tour Championships. She often represented the United States in the Federation Cup and the Wightman Cup. She was a member of the victorious United States team in seven Federation Cups and nine Wightman Cups.
Billie Jean King career statistics Billie Jean King career statistics This is a list of the main career statistics of former tennis player Billie Jean King. By winning the 1968 Australian Championships title, King became the 7th player to complete the mixed doubles career Grand Slam. A = did not participate in the tournament SR = the ratio of the number of singles tournaments won to the number of those tournaments played Note: The Australian Open was held twice in 1977, in January and December. A = did not participate in the tournament SR = the ratio of the number of singles tournaments won to