# 2006 Bank of the West Classic – Singles

Kim Clijsters was the defending champion, and successfully defended her title, defeating Patty Schnyder in the final 6–4, 6–2.

## Seeds

The top four seeds received a bye into the second round.
* Kim Clijsters (champion)
* Patty Schnyder (finals)
* Nicole Vaidišová (semifinals)
* Anna-Lena Grönefeld (quarterfinals)
* Daniela Hantuchová (first round)
* Ai Sugiyama (second round)
* Shahar Pe'er (second round)
* Katarina Srebotnik (first round)

## 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 |
| 1 | Kim Clijsters | 7 | 6 | | | | |
| 3 | Nicole Vaidišová | 5 | 2 | | | | |
| 3 | Nicole Vaidišová | 5 | 2 | 1 | Kim Clijsters | 6 | 6 |
| | | | | 2 | Patty Schnyder | 4 | 2 |
| | Tatiana Golovin | 6$^4$ | 1 | 2 | Patty Schnyder | 4 | 2 |
| 2 | Patty Schnyder | 7$^7$ | 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 | K Clijsters | 5 | 6 | 6 | | | | | | | | | |
| | J Janković | 7 | 6 | | | J Janković | 7 | 2 | 2 | | | | | | | | | |
| WC | L Osterloh | 5 | 3 | | | | | | | 1 | K Clijsters | 6 | 3 | 6 | | | | |
| | ME Camerin | 6 | 6$^6$ | 3 | | | | | | WC | V Zvonareva | 2 | 6 | 1 | | | | |
| | N Dechy | 0 | 7$^8$ | 6 | | N Dechy | 6$^5$ | 0 | | | | | | | | | | |
| WC | V Zvonareva | 6 | 6 | | WC | V Zvonareva | 7$^7$ | 6 | | | | | | | | | | |
| 8 | K Srebotnik | 4 | 3 | | | | | | | | | | | | 1 | K Clijsters | 7 | 6 |
| | | | | | | | | | | | | | | | 3 | N Vaidišová | 5 | 2 |
| | | | | | 3 | N Vaidišová | 6 | 6 | | | | | | | | | | |
| | M Bartoli | 3 | 7 | 4 | | S Bammer | 1 | 4 | | | | | | | | | | |
| | S Bammer | 6 | 5 | 6 | | | | | | 3 | N Vaidišová | 6 | 6 | | | | | |
| Q | O Savchuk | 1 | 3 | | | | | | | | S Stosur | 4 | 2 | | | | | |
| | S Stosur | 6 | 6 | | | S Stosur | 7 | 6 | | | | | | | | | | |
| WC | A Liu | 6 | 1 | 0 | 7 | S Pe'er | 5 | 3 | | | | | | | | | | |
| 7 | S Pe'er | 4 | 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | A Sugiyama | 6 | 6 | | | | | | | | | | | | | | |
| | K Peschke | 3 | 4 | | 6 | A Sugiyama | 2 | 3 | | | | | | | | | |
| | T Golovin | 7 | 6 | | | T Golovin | 6 | 6 | | | | | | | | | |
| | A Bondarenko | 5 | 2 | | | | | | | | T Golovin | 6 | 7$^7$ | | | | |
| Q | V Bardina | 6 | 6 | | | | | | | 4 | A-L Grönefeld | 4 | 6$^5$ | | | | |
| | S Mirza | 3 | 2 | | Q | V Bardina | 3 | 5 | | | | | | | | | |
| | | | | | 4 | A-L Grönefeld | 6 | 7 | | | | | | | | | |
| | | | | | | | | | | | | | | | T Golovin | 6$^4$ | 1 |
| 5 | D Hantuchová | 2 | 6 | 3 | | | | | | | | | | 2 | P Schnyder | 7$^7$ | 6 |
| Q | S Perry | 6 | 0 | 6 | Q | S Perry | 3 | 6 | 6$^2$ | | | | | | | | |
| | J Craybas | 6 | 6 | | | J Craybas | 6 | 3 | 7$^7$ | | | | | | | | |
| PR | C Rubin | 2 | 3 | | | | | | | | J Craybas | 4 | 5 | | | | |
| | G Dulko | 0 | 3 | | | | | | | 2 | P Schnyder | 6 | 7 | | | | |
| Q | A Morigami | 6 | 6 | | Q | A Morigami | 1 | 4 | | | | | | | | | |
| | | | | | 2 | P Schnyder | 6 | 6 | | | | | | | | | |