2009 LA Tennis Open – Singles

Juan Martín del Potro was the defending champion, but chose not to participate that year.

Seeds
The top four seeds receive a bye into the second round. • # 🇩🇪 Tommy Haas (semifinals)

• # 🇺🇸 Mardy Fish (quarterfinals, withdrew because of abdominal strain)

• # 🇷🇺 Dmitry Tursunov (second round, retired because of a left ankle injury)

• # 🇮🇱 Dudi Sela (quarterfinals)

• # 🇷🇺 Igor Kunitsyn (second round)

• # 🇺🇸 Sam Querrey (champion)

• # 🇩🇪 Benjamin Becker (first round)

• # 🇷🇺 Marat Safin (quarterfinals)