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 – Men's Singles 2016 US Open – Men's Singles Novak Djokovic was the defending champion, but lost in the final to Stan Wawrinka, 7–6, 4–6, 5–7, 3–6. This was the first time the men's singles champion at the US Open won the match after losing the first set since Juan Martín del Potro in 2009. This was also the first time the men's singles champion at the US Open won the title after being a match point down since Djokovic in 2011, with Wawrinka having saved a match point against Dan Evans in the 3rd round. As he had done in his 2