the first round. She lost in the second round to third seed Jelena Janković. Paszek qualified for the Porsche Tennis Grand Prix beating Sesil Karatantcheva, Lenka Juríková, and Zuzana Kučová. She was defeated in the first round by German Andrea Petkovic. In Portugal at the Estoril Open, Paszek qualified for the tournament defeating Ekaterina Ivanova, Laura Siegemund, and Heather Watson. She retired during her first-round match versus Anastasiya Yakimova. Paszek played at the Italian Open where she qualified for the tournament beating Casey Dellacqua and Virginie Razzano. However, she was defeated in the first round by Elena Vesnina. Ranked 85 at the French Open, Paszek lost in the first round to 29th seed Peng Shuai. Paszek began her grass-court season at the Nottingham Trophy. Seeded third, she advanced to the quarterfinals where she lost to eventual champion Eleni Daniilidou. In the Birmingham Classic, Paszek reached the third round after wins over Sania Mirza and sixth seed Ekaterina Makarova. She lost her third-round match to eventual champion Sabine Lisicki. Getting through qualifying at Eastbourne, Paszek lost in the first round to second seed Li Na. Ranked 80 at the Wimbledon Championships, she reached the quarterfinals for the first time in her career after victories over Ayumi Morita, Christina McHale, sixth seed Francesca Schiavone, and Ksenia Pervak. She lost her quarterfinal match to fourth seed Victoria Azarenka. Paszek began the US Open Series at the first edition of the Washington Open. Seeded third, she made it to the semifinals defeating Melanie Oudin, qualifier Madison Brengle, and Stéphanie Dubois. She lost in her semifinal match to top seed Shahar Pe'er. At the Carlsbad Open, Paszek retired during her third-round match against Sloane Stephens due to a left abdominal injury. Ranked 37 at the US Open, Paszek lost in the first round to Akgul Amanmuradova. Seeded third and the defending champion at the Challenge Bell, Paszek was defeated in the semifinals by Marina Erakovic. Competing in Tokyo at the Pan Pacific Open, Paszek lost in the first round to Christina McHale. In Beijing at the China Open, Paszek upset tenth seed Jelena Janković in their first-round match. She then had a three-set victory over Petra Cetkovská in the second round. She was defeated in the third round by Maria Kirilenko. At Linz, she lost in the first round to qualifier Sorana Cîrstea. Paszek played her final tournament of the year at the Luxembourg Open.