# 2009 Open GDF Suez – Singles

Anna Chakvetadze was the defending champion, but chose not to participate that year.
Amélie Mauresmo won the title, defeating Elena Dementieva in the final 7–6$^{(9–7)}$, 2–6, 6–4. This was Mauremso's final WTA singles title before her retirement at the end of 2009.

## Seeds

* Serena Williams (semifinals, withdrew due to knee injury)
* Jelena Janković (semifinals)
* Elena Dementieva (final)
* Agnieszka Radwańska (quarterfinals)
* Alizé Cornet (quarterfinals)
* Patty Schnyder (second round)
* Anabel Medina Garrigues (first round)
* Amélie Mauresmo (champion)

## 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 | Serena Williams | | | | | | | | |
| 3 | Elena Dementieva | w/o | | | | | | | |
| 3 | Elena Dementieva | w/o | | | 3 | Elena Dementieva | 6$^7$ | 6 | 4 |
| | | | | | 8 | Amélie Mauresmo | 7$^9$ | 2 | 6 |
| 8 | Amélie Mauresmo | 6 | 0 | 6 | 8 | Amélie Mauresmo | 7$^9$ | 2 | 6 |
| 2/WC | Jelena Janković | 2 | 6 | 1 | | | | | |

### 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 | Semifinals | Semifinals | Semifinals |
| 1 | S Williams | 6 | 6 | | | | | | | | | | | | | |
| | I Benešová | 1 | 4 | | 1 | S Williams | 6 | 6 | | | | | | | | |
| | P Kvitová | 3 | 1 | | Q | K Šprem | 1 | 2 | | | | | | | | |
| Q | K Šprem | 6 | 6 | | | | | | | 1 | S Williams | 6 | 6 | | | |
| Q | É Loit | 6 | 6 | | | | | | | Q | É Loit | 4 | 1 | | | |
| | N Vaidišová | 1 | 4 | | Q | É Loit | 2 | 6 | 6 | | | | | | | |
| | K Kanepi | 3 | 6 | 7 | | K Kanepi | 6 | 3 | 1 | | | | | | | |
| 7 | A Medina Garrigues | 6 | 2 | 5 | | | | | | | | | | 1 | S Williams | |
| 3 | E Dementieva | 6 | 6 | | | | | | | | | | | 3 | E Dementieva | w/o |
| LL | A Rezaï | 4 | 3 | | 3 | E Dementieva | 6 | 6 | | | | | | | | |
| | A Pavlyuchenkova | 6 | 6 | | | A Pavlyuchenkova | 4 | 2 | | | | | | | | |
| WC | V Razzano | 4 | 1 | | | | | | | 3 | E Dementieva | 6 | 6 | | | |
| | S Cîrstea | 2 | 6 | 2 | | | | | | WC | N Dechy | 3 | 2 | | | |
| WC | N Dechy | 6 | 1 | 6 | WC | N Dechy | 3 | 6 | 6 | | | | | | | |
| | A Bondarenko | 4 | 6$^3$ | | 6 | P Schnyder | 6 | 4 | 3 | | | | | | | |
| 6 | P Schnyder | 6 | 7$^7$ | | | | | | | | | | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | A Mauresmo | 6 | 6 | | | | | | | | | | | | | | | |
| | S Errani | 2 | 0 | 8 | A Mauresmo | 6 | 6 | | | | | | | | | | | |
| | T Bacsinszky | 4 | 3 | | M Niculescu | 1 | 2 | | | | | | | | | | | |
| | M Niculescu | 6 | 6 | | | | | | 8 | A Mauresmo | 6 | 6 | | | | | | |
| | A Kleybanova | 6 | 7$^7$ | | | | | | 4 | A Radwańska | 2 | 0 | | | | | | |
| | T Pironkova | 2 | 6$^3$ | | A Kleybanova | 7$^7$ | 4 | 2 | | | | | | | | | | |
| Q | O Lyubtsova | 1 | 1 | 4 | A Radwańska | 6$^5$ | 6 | 6 | | | | | | | | | | |
| 4 | A Radwańska | 6 | 6 | | | | | | | | | | | 8 | A Mauresmo | 6 | 0 | 6 |
| 5 | A Cornet | 6 | 6 | | | | | | | | | | | 2/WC | J Janković | 2 | 6 | 1 |
| Q | A Sevastova | 1 | 3 | 5 | A Cornet | 1 | 6 | 6 | | | | | | | | | | |
| | E Makarova | 2 | 2 | WC | D Hantuchová | 6 | 4 | 2 | | | | | | | | | | |
| WC | D Hantuchová | 6 | 6 | | | | | | 5 | A Cornet | 7 | 4 | 4 | | | | | |
| | Á Szávay | 6$^6$ | 2 | | | | | | 2/WC | J Janković | 5 | 6 | 6 | | | | | |
| | N Li | 7$^8$ | 6 | | N Li | 0 | 6 | 2 | | | | | | | | | | |
| | F Schiavone | 5 | 6$^2$ | 2/WC | J Janković | 6 | 3 | 6 | | | | | | | | | | |
| 2/WC | J Janković | 7 | 7$^7$ | | | | | | | | | | | | | | | |