2009 US Open – Women's Singles second round. This was also the final Grand Slam singles appearance of Ai Sugiyama, who was on a record-breaking 62nd consecutive Grand Slam singles appearance, lost in the first round to Samantha Stosur. Sugiyama's record-breaking run of 62 consecutive Grand Slam singles appearances remains unbeaten as of 2019. Dinara Safina "(Third round)" 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
1986 US Open – Men's Singles 1986 US Open – Men's Singles Ivan Lendl was the defending champion and retained his title, defeating Miloslav Mečíř 6–4, 6–2, 6–0 in the final to win the Men's Singles tennis title at the 1986 US Open. This tournament was notable for being the first Grand Slam in which Andre Agassi competed in the main draw. He would go on to play an Open Era record 21 consecutive US Open tournaments, until his retirement in 2006. This was also the first US Open in history where no American reached the semifinals. The seeded players are listed below. Ivan Lendl is