| Singles | |
|---|---|
| 2009 LA Women's Tennis Championships | |
| Champion |  Flavia Pennetta |
| Runner-up |  Samantha Stosur |
| Final score | 6–4, 6–3 |
World No. 1 Dinara Safina was the defending champion, but she lost in the third round against Zheng Jie.
Flavia Pennetta won in the final 6–4, 6–3 against Samantha Stosur.
The top eight seeds receive a bye into the second round.
Dinara Safina (third round) Vera Zvonareva (quarterfinals)
Victoria Azarenka (second round)
Caroline Wozniacki (second round) Nadia Petrova (third round)
Ana Ivanovic (third round)
Dominika Cibulková (second round)
Agnieszka Radwańska (quarterfinals)
Marion Bartoli (withdrew) Flavia Pennetta (champion) Virginie Razzano (first round)
Li Na (third round, withdrew due to a right knee injury) Samantha Stosur (final) Zheng Jie (quarterfinals)
Kaia Kanepi (first round) Francesca Schiavone (first round)
Sabine Lisicki (third round, Retired due to a right shoulder injury)| Quarterfinals | Semifinals | Final | ||||||||||||||||||
| 14 | Zheng Jie | 6 | 3 | 4 | ||||||||||||||||
| 13 | Samantha Stosur | 4 | 6 | 6 | ||||||||||||||||
| 13 | Samantha Stosur | 6 | 6 | |||||||||||||||||
 Sorana Cîrstea | 3 | 2 | ||||||||||||||||||
| Sorana Cîrstea | 7 | 1 | 7 | |||||||||||||||||
| 8 | Agnieszka Radwańska | 64 | 6 | 5 | ||||||||||||||||
| 13 | Samantha Stosur | 4 | 3 | |||||||||||||||||
| 10 | Flavia Pennetta | 6 | 6 | |||||||||||||||||
| Urszula Radwańska | 4 | 5 | ||||||||||||||||||
| Maria Sharapova | 6 | 7 | ||||||||||||||||||
| Maria Sharapova | 2 | 6 | 3 | |||||||||||||||||
| 10 | Flavia Pennetta | 6 | 4 | 6 | ||||||||||||||||
| 10 | Flavia Pennetta | 6 | 6 | |||||||||||||||||
| 2 | Vera Zvonareva | 4 | 2 | |||||||||||||||||
| First round | Second round | Third round | Quarterfinals | ||||||||||||||||||||||||
| 1 | D Safina | 6 | 6 | ||||||||||||||||||||||||
| Q |  M Oudin | 7 | 2 | 2 | D Hantuchová | 2 | 4 | ||||||||||||||||||||
| D Hantuchová | 63 | 6 | 6 | 1 | D Safina | 5 | 6 | 4 | |||||||||||||||||||
 Á Szávay | 1 | 0 | 14 | J Zheng | 7 | 4 | 6 | ||||||||||||||||||||
| E Vesnina | 6 | 6 | E Vesnina | 4 | 6 | 0 | |||||||||||||||||||||
| Q |  O Savchuk | 5 | 6 | 2 | 14 | J Zheng | 6 | 4 | 6 | ||||||||||||||||||
| 14 | J Zheng | 7 | 1 | 6 | 14 | J Zheng | 6 | 3 | 4 | ||||||||||||||||||
| 13 | S Stosur | 6 | 6 | 13 | S Stosur | 4 | 6 | 6 | |||||||||||||||||||
| M Niculescu | 1 | 2 | 13 | S Stosur | 6 | 6 | |||||||||||||||||||||
| Q |  C Scheepers | 6 | 3 | 1 | M Kirilenko | 2 | 4 | ||||||||||||||||||||
| M Kirilenko | 4 | 6 | 6 | 13 | S Stosur | 6 | 6 | ||||||||||||||||||||
| WC | V King | 6 | 6 | 6 | A Ivanovic | 3 | 2 | ||||||||||||||||||||
 S Bammer | 3 | 2 | WC | V King | 4 | 6 | 1 | ||||||||||||||||||||
| 6 | A Ivanovic | 6 | 4 | 6 | |||||||||||||||||||||||
| First round | Second round | Third round | Quarterfinals | ||||||||||||||||||||||||
| 4 | C Wozniacki | 6 | 4 | 65 | |||||||||||||||||||||||
| S Cîrstea | 6 | 7 | S Cîrstea | 1 | 6 | 7 | |||||||||||||||||||||
| WC |  M Larcher de Brito | 4 | 5 | S Cîrstea | 6 | 1 | |||||||||||||||||||||
| M Czink | 6 | 4 | 1 | 17 | S Lisicki | 3 | 0 | r | |||||||||||||||||||
| E Makarova | 3 | 6 | 6 | E Makarova | 1 | 4 | |||||||||||||||||||||
| Q |  K Date-Krumm | 65 | 6 | 5 | 17 | S Lisicki | 6 | 6 | |||||||||||||||||||
| 17 | S Lisicki | 7 | 2 | 7 | S Cîrstea | 7 | 1 | 7 | |||||||||||||||||||
| 11 | V Razzano | 65 | 3 | 8 | A Radwańska | 64 | 6 | 5 | |||||||||||||||||||
| A Chakvetadze | 7 | 6 | A Chakvetadze | 6 | 3 | 6 | |||||||||||||||||||||
| A Kleybanova | 6 | 6 | A Kleybanova | 3 | 6 | 1 | |||||||||||||||||||||
| A Kudryavtseva | 1 | 3 | A Chakvetadze | 3 | 2 | ||||||||||||||||||||||
| Q | C Gullickson | 3 | 1 | 8 | A Radwańska | 6 | 6 | ||||||||||||||||||||
| A Sugiyama | 6 | 6 | A Sugiyama | 2 | 1 | ||||||||||||||||||||||
| 8 | A Radwańska | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Third round | Quarterfinals | ||||||||||||||||||||||||
| 7 | D Cibulková | 4 | 7 | 4 | |||||||||||||||||||||||
| U Radwańska | 6 | 6 | U Radwańska | 6 | 66 | 6 | |||||||||||||||||||||
| J Coin | 1 | 2 | U Radwańska | w/o | |||||||||||||||||||||||
 A Wozniak | 7 | 7 | 12 | N Li | |||||||||||||||||||||||
| B Mattek-Sands | 5 | 5 | A Wozniak | 6 | 4 | 2 | |||||||||||||||||||||
| A Morita | 0 | 0 | r | 12 | N Li | 4 | 6 | 6 | |||||||||||||||||||
| 12 | N Li | 6 | 2 | U Radwańska | 4 | 5 | |||||||||||||||||||||
| 15 | K Kanepi | 3 | 64 | M Sharapova | 6 | 7 | |||||||||||||||||||||
 L Šafářová | 6 | 7 | L Šafářová | 7 | 4 | 5 | |||||||||||||||||||||
| M Shaughnessy | 6 | 3 | 3 | A Bondarenko | 5 | 6 | 7 | ||||||||||||||||||||
| A Bondarenko | 3 | 6 | 6 | A Bondarenko | 6 | 0 | 3 | ||||||||||||||||||||
| M Sharapova | 6 | 6 | M Sharapova | 4 | 6 | 6 | |||||||||||||||||||||
| J Groth | 0 | 4 | M Sharapova | 64 | 6 | 6 | |||||||||||||||||||||
| 3 | V Azarenka | 7 | 4 | 2 | |||||||||||||||||||||||
| First round | Second round | Third round | Quarterfinals | ||||||||||||||||||||||||
| 5 | N Petrova | 6 | 2 | 6 | |||||||||||||||||||||||
 S Pe'er | 7 | 4 | S Pe'er | 4 | 6 | 3 | |||||||||||||||||||||
| Q | A Rodionova | 5 | 1 | r | 5 | N Petrova | 3 | 3 | |||||||||||||||||||
| T Garbin | 4 | 4 | 10 | F Pennetta | 6 | 6 | |||||||||||||||||||||
| WC | C Vandeweghe | 6 | 6 | WC | C Vandeweghe | 2 | 4 | ||||||||||||||||||||
| LL | V Lepchenko | 2 | 7 | 0 | 10 | F Pennetta | 6 | 6 | |||||||||||||||||||
| 10 | F Pennetta | 6 | 5 | 6 | 10 | F Pennetta | 6 | 6 | |||||||||||||||||||
| 16 | F Schiavone | 67 | 2 | 2 | V Zvonareva | 4 | 2 | ||||||||||||||||||||
| Q | J Craybas | 7 | 6 | Q | J Craybas | 62 | 1 | ||||||||||||||||||||
 Y Wickmayer | 6 | 6 | Y Wickmayer | 7 | 6 | ||||||||||||||||||||||
| N Vaidišová | 1 | 1 | Y Wickmayer | 65 | 6 | 4 | |||||||||||||||||||||
| Q |  M Krajicek | 3 | 7 | 3 | 2 | V Zvonareva | 7 | 4 | 6 | ||||||||||||||||||
| S Peng | 6 | 64 | 6 | S Peng | 6 | 3 | 66 | ||||||||||||||||||||
| 2 | V Zvonareva | 3 | 6 | 7 | |||||||||||||||||||||||
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