Lindsay Davenport was the defending champion from when the event was last held in 2000, but she decided not to participate this year.

Second-seeded Amélie Mauresmo won the title, defeating Anastasia Myskina in the final, 5–7, 6–0, 6–2.ITF results2003 Philadelphia & Quebec WTA Singles Results

Seeds

Draw

Finals

Top half

Bottom half

References