# 2007 AIG Japan Open Tennis Championships – Women's singles

Marion Bartoli was the defending champion, but chose not to participate that year.
Fifth-seeded Virginie Razzano won in the final 4–6, 7–6$^{(9–7)}$, 6–4, against first-seeded Venus Williams.

## Seeds

* Venus Williams (final)
* Sania Mirza (quarterfinals)
* Maria Kirilenko (first round)
* Ai Sugiyama (first round)
* Virginie Razzano (champion)
* Akiko Morigami (first round)
* Aiko Nakamura (first round)
* Flavia Pennetta (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 | Semifinals | Final | Final | Final | Final | Final |
| 1 | Venus Williams | 6 | 7 | | | | | | |
| | Caroline Wozniacki | 3 | 5 | | | | | | |
| | Caroline Wozniacki | 3 | 5 | | 1 | Venus Williams | 6 | 6$^7$ | 4 |
| | | | | | 5 | Virginie Razzano | 4 | 7 | 6 |
| 5 | Virginie Razzano | 4 | 7 | 6 | 5 | Virginie Razzano | 4 | 7 | 6 |
| 8 | Flavia Pennetta | 6 | 5 | 3 | | | | | |

### 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 | V Williams | 6 | 6 | | | | | | | | | | | | | | | |
| | J Craybas | 3 | 1 | | 1 | V Williams | 6 | 6 | | | | | | | | | | |
| | E Gallovits | 2 | 7 | 5 | | V King | 0 | 4 | | | | | | | | | | |
| | V King | 6 | 5 | 7 | | | | | | 1 | V Williams | 7 | 6 | | | | | |
| | A Wozniak | 7 | 6$^7$ | 6 | | | | | | | A Molik | 6$^4$ | 3 | | | | | |
| | Y Fedossova | 5 | 7 | 1 | | A Wozniak | 1 | 0 | | | | | | | | | | |
| | A Molik | 6 | 6 | | | A Molik | 6 | 6 | | | | | | | | | | |
| 6 | A Morigami | 1 | 2 | | | | | | | | | | | | 1 | V Williams | 6 | 7 |
| 4 | A Sugiyama | 3 | 3 | | | | | | | | | | | | | C Wozniacki | 3 | 5 |
| Q | M Yuan | 6 | 6 | | Q | M Yuan | 6$^3$ | 6 | 1 | | | | | | | | | |
| | C Wozniacki | 6 | 6 | | | C Wozniacki | 7 | 4 | 6 | | | | | | | | | |
| | C Castaño | 2 | 1 | | | | | | | | C Wozniacki | 6 | 2 | 7 | | | | |
| WC | U Radwańska | 6 | 6 | | | | | | | | K Zakopalová | 3 | 6 | 6$^3$ | | | | |
| | S Ferguson | 1 | 2 | | WC | U Radwańska | 2 | 6 | 2 | | | | | | | | | |
| | K Zakopalová | 6 | 6 | | | K Zakopalová | 6 | 3 | 6 | | | | | | | | | |
| 7 | A Nakamura | 3 | 4 | | | | | | | | | | | | | | | |

### 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 | Semifinals |
| 5 | V Razzano | 6 | 6 | | | | | | | | | | | | | | | |
| | T Tanasugarn | 3 | 1 | | 5 | V Razzano | 6 | 6 | | | | | | | | | | |
| | Z Yan | 6 | 2 | 4 | Q | E Baltacha | 2 | 2 | | | | | | | | | | |
| Q | E Baltacha | 2 | 6 | 6 | | | | | | 5 | V Razzano | 6 | 6 | | | | | |
| | L Domínguez Lino | 4 | 4 | | | | | | | | C Pin | 2 | 2 | | | | | |
| | J Kostanić Tošić | 6 | 6 | | | J Kostanić Tošić | 1 | 0 | | | | | | | | | | |
| | C Pin | 6 | 4 | 6 | | C Pin | 6 | 6 | | | | | | | | | | |
| 3 | M Kirilenko | 3 | 6 | 3 | | | | | | | | | | 5 | V Razzano | 4 | 7 | 6 |
| 8 | F Pennetta | 7 | 6 | | | | | | | | | | | 8 | F Pennetta | 6 | 5 | 3 |
| | A Rolle | 5 | 1 | | 8 | F Pennetta | 6 | 7 | | | | | | | | | | |
| Q | A Spears | 6 | 6 | | Q | A Spears | 4 | 6$^2$ | | | | | | | | | | |
| Q | T Yonemura | 4 | 1 | | | | | | | 8 | F Pennetta | 6 | 6 | | | | | |
| | S Brémond | 4 | 0 | | | | | | | 2 | S Mirza | 4 | 4 | | | | | |
| | C Dellacqua | 6 | 6 | | | C Dellacqua | 4 | 6 | 4 | | | | | | | | | |
| WC | A Morita | 0 | 4 | | 2 | S Mirza | 6 | 3 | 6 | | | | | | | | | |
| 2 | S Mirza | 6 | 6 | | | | | | | | | | | | | | | |