| 2009 Bank of the West Classic | |
|---|---|
| Date | July 27 – August 2 |
| Edition | 38th |
| Category | WTA Premier tournaments |
| Draw | 32S / 16D |
| Prize money | $700,00 |
| Surface | Hard / outdoor |
| Location | Stanford, California, US |
| Venue | Taube Tennis Center |
| Champions | |
| Singles | |
 Marion Bartoli | |
| Doubles | |
 Serena Williams / Venus Williams | |
The 2009 Bank of the West Classic was a tennis tournament played on outdoor hard courts. It was the 38th edition of the Bank of the West Classic, and was part of the WTA Premier tournaments of the 2009 WTA Tour. It took place at the Taube Tennis Center in Stanford, California, United States, from July 27 through August 2, 2009. It was the first women's event on the 2009 US Open Series.
Players committed to participating in the singles event for 2009.[1]
| Player | WTA Tour Rank* | Seeds |
|---|---|---|
| Serena Williams |
2 | 1 |
| Venus Williams |
3 | 2 |
 Elena Dementieva |
4 | 3 |
 Jelena Janković |
6 | 4 |
| Nadia Petrova |
10 | 5 |
 Dominika Cibulková |
12 | 6 |
 Agnieszka Radwańska |
14 | 7 |
| Marion Bartoli |
15 | 8 |
The following players received wildcards into the singles main draw
The following players received entry from the qualifying draw:
|
Main article: 2009 Bank of the West Classic – Singles |
Marion Bartoli defeated Venus Williams, 6–2, 5–7, 6–4
|
Main article: 2009 Bank of the West Classic – Doubles |
Serena Williams / Venus Williams defeated 
Yung-Jan Chan / 
Monica Niculescu, 6–4, 6–1
