| Singles | |
|---|---|
| 2008 Bank of the West Classic | |
| Champion |  Aleksandra Wozniak |
| Runner-up |  Marion Bartoli |
| Final score | 7–5, 6–3 |
| Draw | 28 |
| Seeds | 8 |
Anna Chakvetadze was the defending champion, but lost in the quarterfinals to Marion Bartoli.
Aleksandra Wozniak won her first and only WTA tour title, defeating Bartoli in the final 7–5, 6–3.
The top four seeds received a bye into the second round.
Serena Williams (semifinals)
Anna Chakvetadze (quarterfinals) Vera Zvonareva (second round)
Daniela Hantuchová (second round)
Patty Schnyder (quarterfinals) Marion Bartoli (final) Nadia Petrova (first round)
Francesca Schiavone (first round)| Semifinals | Final | ||||||||||||
| 1 | Serena Williams | 2 | 1r | ||||||||||
| Q | Aleksandra Wozniak | 6 | 3 | ||||||||||
| Q | Aleksandra Wozniak | 7 | 6 | ||||||||||
| 6 | Marion Bartoli | 5 | 3 | ||||||||||
 Ai Sugiyama | 3 | 3 | |||||||||||
| 6 | Marion Bartoli | 6 | 6 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | S Williams | 4 | 6 | 6 | |||||||||||||||||||||||
| Q |  M Larcher de Brito | 7 | 77 | Q | M Larcher de Brito | 6 | 3 | 2 | |||||||||||||||||||
 G Dulko | 5 | 61 | 1 | S Williams | 6 | 6 | |||||||||||||||||||||
| E Vesnina | 6 | 2 | 3 | 5 | P Schnyder | 3 | 1 | ||||||||||||||||||||
| A Kleybanova | 4 | 6 | 6 | A Kleybanova | 68 | 4 | |||||||||||||||||||||
| WC | A Liu | 1 | 1 | 5 | P Schnyder | 710 | 6 | ||||||||||||||||||||
| 5 | P Schnyder | 6 | 6 | 1 | S Williams | 2 | 1r | ||||||||||||||||||||
| Q | A Wozniak | 6 | 3 | ||||||||||||||||||||||||
| 3 | V Zvonareva | 3 | 2 | ||||||||||||||||||||||||
| A Rodionova | 3 | 1 | LL |  S Stosur | 6 | 6 | |||||||||||||||||||||
| LL | S Stosur | 6 | 6 | LL | S Stosur | 2 | 7 | 4 | |||||||||||||||||||
 S Bammer | 7 | 6 | Q | A Wozniak | 6 | 5 | 6 | ||||||||||||||||||||
 O Govortsova | 5 | 2 | S Bammer | 4 | 5 | ||||||||||||||||||||||
| Q | A Wozniak | 2 | 6 | 6 | Q | A Wozniak | 6 | 7 | |||||||||||||||||||
| 8 | F Schiavone | 6 | 3 | 2 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 7 | N Petrova | 4 | 6 | 3 | |||||||||||||||||||||||
| D Cibulková | 6 | 3 | 6 | D Cibulková | 6 | 6 | |||||||||||||||||||||
 K Bondarenko | 7 | 6 | K Bondarenko | 2 | 3 | ||||||||||||||||||||||
| A Harkleroad | 5 | 2 | D Cibulková | 77 | 65 | 3r | |||||||||||||||||||||
| A Sugiyama | 6 | 3 | 7 | A Sugiyama | 64 | 77 | 5 | ||||||||||||||||||||
| WC | A Glatch | 2 | 6 | 5 | A Sugiyama | 6 | 6 | ||||||||||||||||||||
| 4 | D Hantuchová | 3 | 1 | ||||||||||||||||||||||||
| A Sugiyama | 3 | 3 | |||||||||||||||||||||||||
| 6 | M Bartoli | 6 | 6 | 6 | M Bartoli | 6 | 6 | ||||||||||||||||||||
 A Amanmuradova | 1 | 3 | 6 | M Bartoli | 6 | 1 | 7 | ||||||||||||||||||||
 S Mirza | 64 | 1 | Q |  A Keothavong | 3 | 6 | 5 | ||||||||||||||||||||
| Q | A Keothavong | 77 | 6 | 6 | M Bartoli | 6 | 6 | ||||||||||||||||||||
 S Pe'er | 7 | 6 | 2 | A Chakvetadze | 3 | 4 | |||||||||||||||||||||
| Q |  M Czink | 5 | 0 | S Pe'er | 3 | 4 | |||||||||||||||||||||
| 2 | A Chakvetadze | 6 | 6 | ||||||||||||||||||||||||
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