Serena Williams was the defending champion, and successfully defended her title, defeating lucky loser CoCo Vandeweghe in the final, 7–5, 6–3. It was the first all-American final on the WTA Tour since the 2009 WTA Tour Championships, and the first on American soil since Los Angeles in 2004.
| Singles | |
|---|---|
| 2012 Bank of the West Classic | |
| Champion |  Serena Williams |
| Runner-up | CoCo Vandeweghe |
| Score | 7–5, 6–3 |
| Draw | 28 |
| Seeds | 8 |
Seeds
The top four seeds received a bye into the second round.
Serena Williams (champion)
Marion Bartoli (quarterfinals)
Dominika Cibulková (quarterfinals)
Jelena Janković (second round)
Yanina Wickmayer (semifinals)
Chanelle Scheepers (quarterfinals)
Petra Martić(withdrew)
Marina Erakovic (second round)
Sorana Cîrstea (semifinals)
Draw
Key
- Q = Qualifier
- WC = Wild card
- LL = Lucky loser
- Alt = Alternate
- SE = Special exempt
- PR = Protected ranking
- ITF = ITF entry
- JE = Junior exempt
- w/o = Walkover
- r = Retired
- d = Defaulted
- SR = Special ranking
Finals
| Semifinals | Final | ||||||||||||
| 1 | Serena Williams | 6 | 6 | ||||||||||
| 9 |  Sorana Cîrstea | 1 | 2 | ||||||||||
| 1 | Serena Williams | 7 | 6 | ||||||||||
| LL | CoCo Vandeweghe | 5 | 3 | ||||||||||
| LL | CoCo Vandeweghe | 6 | 3 | 6 | |||||||||
| 5 |  Yanina Wickmayer | 2 | 6 | 2 | |||||||||
Top half
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | S Williams | 6 | 6 | ||||||||||||||||||||||||
| WC | N Gibbs | 6 | 6 | WC | N Gibbs | 2 | 1 | ||||||||||||||||||||
| Q |  N Lertcheewakarn | 4 | 4 | 1 | S Williams | 6 | 6 | ||||||||||||||||||||
| WC |  M Larcher de Brito | 5 | 6 | 6 | 6 |  C Scheepers | 4 | 0 | |||||||||||||||||||
 J Gajdošová | 7 | 2 | 3 | WC | M Larcher de Brito | 3 | 4 | ||||||||||||||||||||
| Q | G Min | 4 | 4 | 6 | C Scheepers | 6 | 6 | ||||||||||||||||||||
| 6 | C Scheepers | 6 | 6 | 1 | S Williams | 6 | 6 | ||||||||||||||||||||
| 9 | S Cîrstea | 1 | 2 | ||||||||||||||||||||||||
| 3 |  D Cibulková | 6 | 6 | ||||||||||||||||||||||||
| Q |  E Sema | 6 | 6 | Q | E Sema | 1 | 3 | ||||||||||||||||||||
| LL | A Glatch | 2 | 3 | 3 | D Cibulková | 77 | 2 | 0 | |||||||||||||||||||
| A Morita | 2r | 9 | S Cîrstea | 65 | 6 | 6 | |||||||||||||||||||||
| LL |  S Zheng | 4 | LL | S Zheng | 3 | 3 | |||||||||||||||||||||
| V King | 5 | 4 | 9 | S Cîrstea | 6 | 6 | |||||||||||||||||||||
| 9 | S Cîrstea | 7 | 6 | ||||||||||||||||||||||||
Bottom half
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 8 |  M Erakovic | 6 | 6 | ||||||||||||||||||||||||
| Q | J Juricová | 2 | 2 | 8 | M Erakovic | 3 | 6 | 4 | |||||||||||||||||||
 E Daniilidou | 6 | 3 | 4 |  U Radwańska | 6 | 3 | 6 | ||||||||||||||||||||
| U Radwańska | 3 | 6 | 6 | U Radwańska | 4 | 4 | |||||||||||||||||||||
 M Czink | 4 | 1 | LL | C Vandeweghe | 6 | 6 | |||||||||||||||||||||
| LL | C Vandeweghe | 6 | 6 | LL | C Vandeweghe | 6 | 6 | ||||||||||||||||||||
| 4 |  J Janković | 4 | 2 | ||||||||||||||||||||||||
| LL | C Vandeweghe | 6 | 3 | 6 | |||||||||||||||||||||||
| 5 | Y Wickmayer | 7 | 2 | 7 | 5 | Y Wickmayer | 2 | 6 | 2 | ||||||||||||||||||
 K-c Chang | 5 | 6 | 5 | 5 | Y Wickmayer | 5 | 6 | 6 | |||||||||||||||||||
| S Stephens | 65 | 6 | 1 |  H Watson | 7 | 1 | 4 | ||||||||||||||||||||
| H Watson | 77 | 4 | 6 | 5 | Y Wickmayer | 6 | 6 | ||||||||||||||||||||
| WC | M Burdette | 2 | 7 | 6 | 2 |  M Bartoli | 3 | 2 | |||||||||||||||||||
| A Keothavong | 6 | 5 | 4 | WC | M Burdette | 5 | 0 | ||||||||||||||||||||
| 2 | M Bartoli | 7 | 6 | ||||||||||||||||||||||||
Qualifying
Seeds
Sesil Karatantcheva (first round)- CoCo Vandeweghe (qualifying competition, lucky loser)
Erika Sema (qualified)- Alexa Glatch (qualifying competition, lucky loser)
Noppawan Lertcheewakarn (qualified)
Chan Yung-jan (first round)- Grace Min (qualified)
Zheng Saisai (qualifying competition, lucky loser)
Qualifiers
Lucky losers
Draw
First qualifier
| First round | Qualifying competition | ||||||||||||
| 1 |  Sesil Karatantcheva | 3 | 5 | ||||||||||
| Abigail Spears | 6 | 7 | |||||||||||
| Abigail Spears | 77 | 2 | 4 | ||||||||||
| 7 | Grace Min | 62 | 6 | 6 | |||||||||
| WC | Alessondra Parra | 2 | 0 | ||||||||||
| 7 | Grace Min | 6 | 6 | ||||||||||
Second qualifier
| First round | Qualifying competition | ||||||||||||
| 2 | CoCo Vandeweghe | 6 | 6 | ||||||||||
| WC | Simone Kalhorn | 2 | 2 | ||||||||||
| 2 | CoCo Vandeweghe | 6 | 2 | 5 | |||||||||
| 5 | Noppawan Lertcheewakarn | 2 | 6 | 7 | |||||||||
| WC | Ellen Tsay | 6 | 4 | 2 | |||||||||
| 5 | Noppawan Lertcheewakarn | 3 | 6 | 6 | |||||||||
Third qualifier
| First round | Qualifying competition | ||||||||||||
| 3 | Erika Sema | 6 | 6 | ||||||||||
| WC | Kristie Ahn | 4 | 4 | ||||||||||
| 3 | Erika Sema | 6 | 6 | ||||||||||
| 8 | Zheng Saisai | 3 | 3 | ||||||||||
 Vladimíra Uhlířová | 2 | 2 | |||||||||||
| 8 | Zheng Saisai | 6 | 6 | ||||||||||
Fourth qualifier
| First round | Qualifying competition | ||||||||||||
| 4 | Alexa Glatch | 6 | 1 | 77 | |||||||||
| Raquel Kops-Jones | 1 | 6 | 65 | ||||||||||
| 4 | Alexa Glatch | 4 | 6 | 2 | |||||||||
| WC | Jana Juricová | 6 | 2 | 6 | |||||||||
| WC | Jana Juricová | 3 | 6 | 6 | |||||||||
| 6 | Chan Yung-jan | 6 | 1 | 2 | |||||||||
External links
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