 USA: US Open - Doubles - Main |
|---|
| 1/8-finals | Cirstea S./Wozniacki C. | Williams S./Williams V. | 0:2 (4:6, 2:6) | details | 07.09.2009 |
| 1/16-finals | Zvonareva V./Azarenka V. | Cirstea S./Wozniacki C. | 1:2 (7:5, 4:6, 2:6) | details | 05.09.2009 |
| 1/32-finals | Cirstea S./Wozniacki C. | Bammer S./Schruff J. | 2:0 (6:4, 6:2) | details | 02.09.2009 |
| USA: Los Angeles - Doubles - Main |
|---|
| 1/8-finals | Cirstea S./Wozniacki C. | Chuang C.-J./Yan Z. | 1:2 | details | 04.08.2009 |
 Sweden: Bastad - Doubles - Main |
|---|
| Quarter-finals | Cirstea S./Wozniacki C. | Kondratieva M./Lefevre S. | 1:2 (6:4, 4:6, 6:7) | details | 09.07.2009 |
| 1/8-finals | Cirstea S./Wozniacki C. | Osterloh L./Ulukan K. | 2:0 (7:6, 7:6) | details | 06.07.2009 |
 United Kingdom: Wimbledon - Doubles - Main |
|---|
| 1/16-finals | Cirstea S./Wozniacki C. | Koryttseva M./Poutchek T. | 1:2 (6:4, 6:7, 4:6) | details | 27.06.2009 |
| 1/32-finals | Hsieh S-W./Peng S. | Cirstea S./Wozniacki C. | 1:2 (4:6, 6:2, 2:6) | details | 25.06.2009 |
 France: French Open - Doubles - Main |
|---|
| 1/32-finals | Cirstea S./Wozniacki C. | Kirilenko M./Pennetta F. | 0:2 (4:6, 4:6) | details | 27.05.2009 |
| USA: Miami - Doubles - Main |
|---|
| 1/16-finals | Wozniacki C./Cirstea S. | Kuznetsova S./Mauresmo A. | 1:2 (6:4, 4:6, 6:7) | details | 26.03.2009 |
