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
2018 US Open (tennis) highest paying tennis grand slam in the world, leapfrogging Roland-Garros in total prize money fund. Prize money for the US Open qualifying tournament is also up 10.3%, to $3.2 million. The prize money for the wheelchair draw amounts to a total of US$350,000. The singles winners of the men and women draws receive US$31,200 and the winner of the quad singles receives US$23,400. Naomi Osaka defeated Serena Williams in the final, 6–2, 6–4. During the final, Williams received three code violations, the second coming with a point penalty and the third with a game penalty. The issue started during the