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
2016 US Open (tennis) 2016 US Open (tennis) The 2016 US Open was the 136th edition of tennis' US Open, the fourth and final Grand Slam event of the year. It took place on outdoor hard courts at the USTA Billie Jean King National Tennis Center in New York City. In the men's singles competition, Stan Wawrinka defeated defending champion Novak Djokovic in the final. Angelique Kerber defeated Karolína Plíšková in the women's singles to become the first German player to win the tournament since Steffi Graf in 1996. 2015 women's singles champion Flavia Pennetta did not defend her title as she had retired