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 Chris Evert in the final. King lost only nine points in the 6–0 bageling of Evert in the first set of their final. King also completed the Triple Crown at Wimbledon (winning the singles, women's doubles, and mixed doubles titles in the same year), thus becoming the first, and only, player to do so at Wimbledon in the Open Era. In none of the preceding tournaments, however, did King play Court. Their rivalry resumed in the final of the Virginia Slims of Nashville tournament, where Court won for the third time in four matches against King in 1973. (This was