2009 US Open – Women's Singles 2009 US Open – Women's Singles Serena Williams was the defending champion, but was defeated in the semifinals by the eventual champion Kim Clijsters. Clijsters defeated first time Grand Slam finalist Caroline Wozniacki in the final to win her second US Open title. Clijsters became the first unseeded player and wild card to win the tournament, and the first mother to win a major since Evonne Goolagong in 1980. Following her win, she made 19th in the rankings. This was the final Grand Slam appearance for former two-time Grand Slam champion, Amélie Mauresmo, who lost to Aleksandra Wozniak in the
1974 US Open – Women's Singles which they were eliminated. 1974 US Open – Women's Singles Reigning champion Margaret Court did not defend her title. Billie Jean King defeated Evonne Goolagong 3–6, 6–3, 7–5 in the final to win the women's singles tennis title at the 1974 US Open. With her loss, Goolagong missed her chance to complete the career Grand Slam. Goolagong would snap Chris Evert's winning streak, at 55 matches in the semi-finals. This was an Open Era record for 10 years until 1984, when it was broken by Martina Navratilova. The seeded players are listed below. Billie Jean King is the champion; others