# 2009 Pattaya Women's Open – Singles

Agnieszka Radwańska was the defending champion, but chose to participate in the Open GDF Suez, which was held the same week.

## Seeds

* Vera Zvonareva (champion)
* Caroline Wozniacki (quarterfinals)
* Dominika Cibulková (withdrew due to a viral illness)
* Sybille Bammer (second round)
* Peng Shuai (quarterfinals)
* Tamarine Tanasugarn (quarterfinals)
* Shahar Pe'er (semifinals)
* Magdaléna Rybáriková (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 |
| 1 | Vera Zvonareva | 6 | 6 | | | | | |
| 7 | Shahar Pe'er | 1 | 4 | | | | | |
| 7 | Shahar Pe'er | 1 | 4 | | 1 | Vera Zvonareva | 7 | 6 |
| | | | | | | Sania Mirza | 5 | 1 |
| | Sania Mirza | 6 | 5 | 6 | | Sania Mirza | 5 | 1 |
| 8 | Magdaléna Rybáriková | 4 | 7 | 1 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | V Zvonareva | 6 | 6 | | | | | | | | | | | | | | |
| | A Klepač | 4 | 3 | | 1 | V Zvonareva | 6 | 6 | | | | | | | | | |
| | Y Shvedova | 6 | 6 | | | Y Shvedova | 4 | 4 | | | | | | | | | |
| | T Paszek | 3 | 4 | | | | | | 1 | V Zvonareva | 6 | 6 | | | | | |
| | G Voskoboeva | 4 | 6 | 6 | | | | | 5 | S Peng | 2 | 3 | | | | | |
| | J Groth | 6 | 2 | 1 | | G Voskoboeva | 6$^4$ | 0 | | | | | | | | | |
| | M Santangelo | 6 | 2 | r | 5 | S Peng | 7 | 6 | | | | | | | | | |
| 5 | S Peng | 3 | 5 | | | | | | | | | | | 1 | V Zvonareva | 6 | 6 |
| 4 | S Bammer | 6 | 3 | 6 | | | | | | | | | | 7 | S Pe'er | 1 | 4 |
| | U Radwańska | 4 | 6 | 1 | 4 | S Bammer | 4 | 5 | | | | | | | | | |
| | V Dushevina | 6 | 7 | | | V Dushevina | 6 | 7 | | | | | | | | | |
| | E Bovina | 4 | 5 | | | | | | | V Dushevina | 4 | 6 | 2 | | | | |
| | A Rodionova | 2 | 2 | | | | | | 7 | S Pe'er | 6 | 4 | 6 | | | | |
| Q | Y Beygelzimer | 6 | 6 | | Q | Y Beygelzimer | 4 | 1 | | | | | | | | | |
| WC | N Lertcheewakarn | 1 | 0 | | 7 | S Pe'er | 6 | 6 | | | | | | | | | |
| 7 | S Pe'er | 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 | Semifinals |
| 6 | T Tanasugarn | 6 | 7 | | | | | | | | | | | | | | | |
| | A Amanmuradova | 2 | 6$^4$ | | 6 | T Tanasugarn | 6 | 6 | | | | | | | | | | |
| | J Moore | 2 | 1 | | | N Silva | 3 | 2 | | | | | | | | | | |
| | N Silva | 6 | 6 | | | | | | | 6 | T Tanasugarn | 5 | 4 | | | | | |
| | S Mirza | 7 | 7 | | | | | | | | S Mirza | 7 | 6 | | | | | |
| WC | N Lertpitaksinchai | 6$^4$ | 5 | | | S Mirza | 6 | 6 | | | | | | | | | | |
| Q | V Diatchenko | 6 | 1 | 6 | Q | V Diatchenko | 4 | 0 | | | | | | | | | | |
| LL | R Fuda | 3 | 6 | 3 | | | | | | | | | | | S Mirza | 6 | 5 | 6 |
| 8 | M Rybáriková | 6 | 4 | 6 | | | | | | | | | | 8 | M Rybáriková | 4 | 7 | 1 |
| WC | K Date-Krumm | 2 | 6 | 4 | 8 | M Rybáriková | 6 | 2 | 6 | | | | | | | | | |
| Q | S Karatantcheva | 2 | 6 | 3 | Q | I Lisjak | 4 | 6 | 2 | | | | | | | | | |
| Q | I Lisjak | 6 | 4 | 6 | | | | | | 8 | M Rybáriková | 6 | 6 | | | | | |
| | K Pervak | 6 | 6 | | | | | | | 2 | C Wozniacki | 4 | 1 | | | | | |
| | T Yonemura | 1 | 1 | | | K Pervak | 7 | 2 | 0$^r$ | | | | | | | | | |
| | Y-J Chan | 3 | 0 | | 2 | C Wozniacki | 6$^4$ | 6 | 3 | | | | | | | | | |
| 2 | C Wozniacki | 6 | 6 | | | | | | | | | | | | | | | |