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.
2007 US Open (tennis) the 2007 US Open are as follows: 2007 US Open (tennis) The 2007 US Open was held from 27 August to 9 September 2007, at USTA Billie Jean King National Tennis Center at Flushing Meadows, New York City. Roger Federer successfully defended his title, becoming the first man in the open era to win four consecutive US Open titles. Maria Sharapova was unsuccessful in defending her 2006 title, being upset in the third round by 18-year-old Agnieszka Radwańska of Poland. Justine Henin, the runner-up to Sharapova in 2006, won her second US Open title, this year without losing a set.