# 2015 Bank of the West Classic – Singles

Serena Williams was the defending champion, but withdrew due to an elbow injury.
Angelique Kerber won the title, defeating Karolína Plíšková in the final, 6–3, 5–7, 6–4.

## Seeds

The top four seeds received a bye into the second round.
* Caroline Wozniacki (second round)
* Agnieszka Radwańska (quarterfinals)
* Carla Suárez Navarro (second round)
* Karolína Plíšková (final)
* Angelique Kerber (champion)
* Andrea Petkovic (second round)
* Madison Keys (second round)
* Elina Svitolina (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 | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| | Varvara Lepchenko | 2 | 5 | | | | | |
| 4 | Karolína Plíšková | 6 | 7 | | | | | |
| 4 | Karolína Plíšková | 6 | 7 | 4 | Karolína Plíšková | 3 | 7 | 4 |
| | | | | 5 | Angelique Kerber | 6 | 5 | 6 |
| 8 | Elina Svitolina | 3 | 1 | 5 | Angelique Kerber | 6 | 5 | 6 |
| 5 | Angelique Kerber | 6 | 6 | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| | | | | | 1/WC | C Wozniacki | 4 | 2 | | | | | | | | | | |
| | M Lučić-Baroni | 6 | 2 | 6$^4$ | | V Lepchenko | 6 | 6 | | | | | | | | | | |
| | V Lepchenko | 3 | 6 | 7$^7$ | | | | | | | V Lepchenko | 6$^3$ | 6 | 6 | | | | |
| | M Barthel | 6 | 6 | | | | | | | | M Barthel | 7$^7$ | 2 | 3 | | | | |
| WC | C Zhao | 3 | 0 | | | M Barthel | 5 | 6 | 7$^7$ | | | | | | | | | |
| | C Witthöft | 7 | 1 | 3 | 6 | A Petkovic | 7 | 2 | 6$^4$ | | | | | | | | | |
| 6 | A Petkovic | 5 | 6 | 6 | | | | | | | | | | | | V Lepchenko | 2 | 5 |
| | | | | | | | | | | | | | | | 4 | Ka Plíšková | 6 | 7 |
| | | | | | 4 | Ka Plíšková | 7 | 6 | | | | | | | | | | |
| Q | K Date-Krumm | 1 | 7$^7$ | 6 | Q | K Date-Krumm | 5 | 2 | | | | | | | | | | |
| | S Lisicki | 6 | 6$^4$ | 2 | | | | | | 4 | Ka Plíšková | 6 | 6 | | | | | |
| | V Diatchenko | 6 | 0 | 0 | | | | | | | A Tomljanović | 2 | 4 | | | | | |
| | A Tomljanović | 3 | 6 | 6 | | A Tomljanović | 1 | 6 | 6 | | | | | | | | | |
| | A Krunić | 3 | 0 | | 7 | M Keys | 6 | 4 | 1 | | | | | | | | | |
| 7 | M Keys | 6 | 6 | | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | E Svitolina | 4 | 6 | 7 | | | | | | | | | | | | | | |
| Q | K Bondarenko | 6 | 4 | 5 | 8 | E Svitolina | 6 | 7$^7$ | | | | | | | | | | |
| | C Garcia | 4 | 5 | | Q | N Gibbs | 3 | 6$^5$ | | | | | | | | | | |
| Q | N Gibbs | 6 | 7 | | | | | | | 8 | E Svitolina | 4 | 7 | 6 | | | | |
| | A Riske | 6 | 5 | 6 | | | | | | | A Riske | 6 | 5 | 1 | | | | |
| | T Maria | 2 | 7 | 1 | | A Riske | 6 | 6 | | | | | | | | | | |
| | | | | | 3 | C Suárez Navarro | 4 | 4 | | | | | | | | | | |
| | | | | | | | | | | | | | | | 8 | E Svitolina | 3 | 1 |
| 5 | A Kerber | 6 | 6 | | | | | | | | | | | | 5 | A Kerber | 6 | 6 |
| | D Gavrilova | 1 | 3 | | 5 | A Kerber | 6 | 6 | | | | | | | | | | |
| | S Zheng | 3 | 4 | | | A Konjuh | 4 | 3 | | | | | | | | | | |
| | A Konjuh | 6 | 6 | | | | | | | 5 | A Kerber | 4 | 6 | 6 | | | | |
| Q | M Doi | 6 | 7$^7$ | | | | | | | 2/WC | A Radwańska | 6 | 4 | 4 | | | | |
| WC | C Bellis | 3 | 6$^3$ | | Q | M Doi | 6 | 2 | 0 | | | | | | | | | |
| | | | | | 2/WC | A Radwańska | 1 | 6 | 6 | | | | | | | | | |

## Qualifying
### Seeds

* Misaki Doi (qualified)
* Kateryna Bondarenko (qualified)
* Sachia Vickery (first round)
* Anna Tatishvili (qualifying competition)
* Nicole Gibbs (qualified)
* Petra Martić (qualifying competition)
* Naomi Osaka (first round)
* Maria Sanchez (first round)

### Qualifiers

* Misaki Doi
* Kateryna Bondarenko
* Kimiko Date-Krumm
* Nicole Gibbs

### Draw
#### First qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Misaki Doi | 6 | 7$^7$ | | | | | | |
| | Xu Yifan | 3 | 6$^3$ | | | | | | |
| | Xu Yifan | 3 | 6$^3$ | | 1 | Misaki Doi | 2 | 6 | 6 |
| | | | | | | Julia Boserup | 6 | 3 | 4 |
| | Julia Boserup | 4 | 7 | 6 | | Julia Boserup | 6 | 3 | 4 |
| 8 | Maria Sanchez | 6 | 5 | 2 | | | | | |

#### Second qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Kateryna Bondarenko | 6 | 6 | | | | | | |
| WC | Caroline Doyle | 0 | 0 | | | | | | |
| WC | Caroline Doyle | 0 | 0 | | 2 | Kateryna Bondarenko | 6 | 3 | 6 |
| | | | | | 6 | Petra Martić | 3 | 6 | 3 |
| | Jessica Pegula | 7$^8$ | 4 | 6$^9$ | 6 | Petra Martić | 3 | 6 | 3 |
| 6 | Petra Martić | 6$^6$ | 6 | 7$^{11}$ | | | | | |

#### Third qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Sachia Vickery | 2 | 4 | | | | |
| | Gabriela Dabrowski | 6 | 6 | | | | |
| | Gabriela Dabrowski | 6 | 6 | | Gabriela Dabrowski | 4 | 1 |
| | | | | | Kimiko Date-Krumm | 6 | 6 |
| | Kimiko Date-Krumm | 6$^3$ | 6 | 6 | Kimiko Date-Krumm | 6 | 6 |
| 7 | Naomi Osaka | 7$^7$ | 4 | 3 | | | |

#### Fourth qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Anna Tatishvili | 5 | 6 | 6 | | | | | |
| | Chan Yung-jan | 7 | 4 | 0 | | | | | |
| | Chan Yung-jan | 7 | 4 | 0 | 4 | Anna Tatishvili | 6 | 3 | 5 |
| | | | | | 5 | Nicole Gibbs | 2 | 6 | 7 |
| WC | Taylor Davidson | 0 | 2 | | 5 | Nicole Gibbs | 2 | 6 | 7 |
| 5 | Nicole Gibbs | 6 | 6 | | | | | | |