2003 Acura Classic – Singles

Venus Williams was the defending champion, but did not compete this year.

Justine Henin-Hardenne won the title by defeating Kim Clijsters 3–6, 6–2, 6–3 in the final.

Seeds
All seeds received a bye into the second round. • # 🇺🇸 Serena Williams (withdrew due to a left quadriceps strain)

• # 🇧🇪 Kim Clijsters (final)

• # 🇧🇪 Justine Henin-Hardenne (champion)

• # 🇺🇸 Lindsay Davenport (semifinals)

• # 🇺🇸 Jennifer Capriati (second round, retired)

• # 🇺🇸 Chanda Rubin (quarterfinals)

• # 🇸🇰 Daniela Hantuchová (third round)

• # 🇯🇵 Ai Sugiyama (second round)

• # Jelena Dokic (third round)

• # 🇧🇬 Magdalena Maleeva (third round)

• # 🇪🇸 Conchita Martínez (second round)

• # Amanda Coetzer (second round)

• # 🇷🇺 Elena Dementieva (third round)

• # 🇺🇸 Meghann Shaughnessy (second round)

• # 🇮🇹 Silvia Farina Elia (second round)

• # 🇷🇺 Elena Bovina (third round)