2005 Bank of the West Classic – Singles

Lindsay Davenport was the defending champion, but retired in the second round against Anna-Lena Grönefeld due to a low back strain.

Kim Clijsters won the title, defeating Venus Williams 7–5, 6–2 in the final.

Seeds
The first four seeds received a bye into the second round. • # 🇺🇸 Lindsay Davenport (second round, retired due to a low back strain)

• # 🇺🇸 Venus Williams (final)

• # Patty Schnyder (semifinals)

• # 🇧🇪 Kim Clijsters (champion)

• # 🇷🇺 Vera Zvonareva (first round)

• # 🇫🇷 Nathalie Dechy (quarterfinals)

• # Jelena Janković (quarterfinals)

• # 🇮🇹 Francesca Schiavone (second round)