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
2000 US Open – Men's Singles 2000 US Open – Men's Singles Andre Agassi was the defending champion but lost in the second round to Arnaud Clément. Marat Safin defeated Pete Sampras 6–4, 6–3, 6–3 in the final to win the Men's Singles tennis title at the 2000 US Open. The tournament was also notable for the first Grand Slam appearance of future World No. 1 and champion Andy Roddick competed in the main draw, and the first appearance of Roger Federer in a U.S Open Grand Slam. The seeded players are listed below. Marat Safin is the champion; others show the round in which they