# 2005 Western & Southern Financial Group Women's Open – Singles

Lindsay Davenport was the defending champion, but decided not to participate that year.
Patty Schnyder won the title, defeating Akiko Morigami 6–4, 6–0 in the final.

## Seeds

* Patty Schnyder (champion)
* Vera Zvonareva (second round)
* Jelena Janković (quarterfinals)
* Daniela Hantuchová (semifinals)
* Marion Bartoli (first round)
* Ai Sugiyama (second round)
* Anna-Lena Grönefeld (first round)
* Květa Peschke (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 | Patty Schnyder | 6 | 6 | | | | |
| Q | Bethanie Mattek | 4 | 1 | | | | |
| Q | Bethanie Mattek | 4 | 1 | 1 | Patty Schnyder | 6 | 6 |
| | | | | | Akiko Morigami | 4 | 0 |
| 4 | Daniela Hantuchová | 4 | 4 | | Akiko Morigami | 4 | 0 |
| | Akiko Morigami | 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 | Semifinal | Semifinal | Semifinal | Semifinal |
| 1 | P Schnyder | 6 | 6 | | | | | | | | | | | | | | | |
| WC | C Wozniacki | 3 | 0 | | 1 | P Schnyder | 4 | 6 | 6 | | | | | | | | | |
| | A Nakamura | 6$^4$ | 6 | 6 | | A Nakamura | 6 | 1 | 3 | | | | | | | | | |
| | A Spears | 7$^7$ | 0 | 3 | | | | | | 1 | P Schnyder | 7$^7$ | 6 | | | | | |
| | Y Fedak | 2 | 3 | | | | | | | | S Pe'er | 6$^1$ | 2 | | | | | |
| | S Pe'er | 6 | 6 | | | S Pe'er | 5 | 7$^8$ | 6 | | | | | | | | | |
| | L Lee-Waters | 5 | 2 | | 6 | A Sugiyama | 7 | 6$^6$ | 4 | | | | | | | | | |
| 6 | A Sugiyama | 7 | 6 | | | | | | | | | | | | 1 | P Schnyder | 6 | 6 |
| 3 | J Janković | 4 | 6 | 6 | | | | | | | | | | | Q | B Mattek | 4 | 1 |
| Q | ME Salerni | 6 | 3 | 0 | 3 | J Janković | 6 | 7 | | | | | | | | | | |
| Q | S Bammer | 7 | 6 | | Q | S Bammer | 3 | 5 | | | | | | | | | | |
| | I Benešová | 5 | 3 | | | | | | | 3 | J Janković | 1 | 6 | 2 | | | | |
| | A Kremer | 5 | 2 | | | | | | | Q | B Mattek | 6 | 0 | 6 | | | | |
| | C Pin | 7 | 6 | | | C Pin | 3 | 0$^r$ | | | | | | | | | | |
| Q | B Mattek | 1 | 6 | 7$^7$ | Q | B Mattek | 6 | 2 | | | | | | | | | | |
| 5 | M Bartoli | 6 | 4 | 6$^0$ | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinal | Semifinal | Semifinal | Semifinal |
| 8 | K Peschke | 4 | 6$^6$ | | | | | | | | | | | | | | |
| | T Panova | 6 | 7$^8$ | | T Panova | 7$^8$ | 2 | 2 | | | | | | | | | |
| | A Jidkova | 6$^5$ | 3 | | Y-j Cho | 6$^6$ | 6 | 6 | | | | | | | | | |
| | Y-j Cho | 7$^7$ | 6 | | | | | | | Y-j Cho | 7$^7$ | 4 | 1 | | | | |
| | C Rubin | 6 | 6 | | | | | | 4 | D Hantuchová | 6$^1$ | 6 | 6 | | | | |
| | L Granville | 3 | 4 | | C Rubin | 2 | 5 | | | | | | | | | | |
| | L Osterloh | 1 | 2 | 4 | D Hantuchová | 6 | 7 | | | | | | | | | | |
| 4 | D Hantuchová | 6 | 6 | | | | | | | | | | | 4 | D Hantuchová | 4 | 4 |
| 7 | A-L Grönefeld | 4 | 3 | | | | | | | | | | | | A Morigami | 6 | 6 |
| | S Mirza | 6 | 6 | | S Mirza | 7$^7$ | 7 | | | | | | | | | | |
| | K Brandi | 6 | 6 | | K Brandi | 6$^5$ | 5 | | | | | | | | | | |
| WC | J Kirkland | 3 | 1 | | | | | | | S Mirza | 4 | 3 | | | | | |
| | A Morigami | 6 | 6 | | | | | | | A Morigami | 6 | 6 | | | | | |
| Q | CA Avants | 3 | 4 | | A Morigami | 6 | 6 | | | | | | | | | | |
| | M Shaughnessy | 3 | 3 | 2 | V Zvonareva | 3 | 2 | | | | | | | | | | |
| 2 | V Zvonareva | 6 | 6 | | | | | | | | | | | | | | |