2011 New Haven Open at Yale – Singles

World No. 1 Caroline Wozniacki was the three-time defending champion and successfully defended her title, beating qualifier Petra Cetkovská 6–4, 6–1 in the final.

Seeds
The top two seeds received a bye into the second round. • # Caroline Wozniacki (champion)

• # 🇨🇳 Li Na (semifinals)

• # 🇮🇹 Francesca Schiavone (semifinals)

• # 🇫🇷 Marion Bartoli (quarterfinals)

• # 🇵🇱 Agnieszka Radwańska (second round)

• # 🇷🇺 Svetlana Kuznetsova (first round)

• # 🇷🇸 Jelena Janković (first round)

• # 🇷🇺 Anastasia Pavlyuchenkova (quarterfinals)