1966 Wimbledon Championships – Women's Singles Smith "(Semifinals)" 1966 Wimbledon Championships – Women's Singles Margaret Smith was the defending champion, but lost in the semifinals to Billie Jean King. King defeated Maria Bueno in the final, 6–3, 3–6, 6–1 to win the Ladies' Singles tennis title at the 1966 Wimbledon Championships. The second round match in which Gail Sherriff beat her sister Carol was the second match between sisters in the ladies' singles draw at Wimbledon, the first being in the 1884 Wimbledon Championships when Maud Watson beat Lillian. The next Wimbledon match between sisters in the singles draw was in 2000 between Serena and Venus
Billie Jean King Bueno in the final. She played the French Championships for the first time in her career, falling in the quarterfinals to Annette Van Zyl DuPlooy of South Africa. At the Federation Cup one week later in West Germany on clay, King won all four of her matches, including victories over DuPlooy, Ann Haydon-Jones, and Helga Niessen Masthoff. King then successfully switched surfaces and won her second consecutive Wimbledon singles title, defeating Virginia Wade in the quarterfinals 7–5, 6–2 and Jones. At the Wightman Cup, King again defeated Wade and Jones. King won her second Grand Slam singles title of the