Billie Jean King the first of her six singles titles at Wimbledon and the first of twelve Grand Slam singles titles overall, defeating Court in the semifinals 6–3, 6–3 and Maria Bueno in the final. King credited her semifinal victory to her forehand down the line, a new shot in her repertoire. She also said that the strategy for playing Court is, "Simple. Just chip the ball back at her feet." At the U.S. Championships, an ill King was upset by Kerry Melville Reid in the second round. King successfully defended her title at the South African Tennis Championships in 1967, defeating Maria
Billie Jean King four consecutive Grand Slam singles titles (a "non-calendar year Grand Slam"), King defeated Maria Bueno in a quarterfinal before losing to Gunter in a semifinal 2–6, 6–3, 6–4. King rebounded to win her third consecutive Wimbledon singles title, defeating Jones in the semifinals and Dalton in the final. At the US Open, King defeated Bueno in a semifinal before being upset in the final by Virginia Wade. On September 24, she had surgery to repair cartilage in her left knee and did not play in tournaments the remainder of the year. King said that it took eight months (May 1969)