Netherlands: Rotterdam - Doubles - Main |
| Semi-finals | Duarte A. C./Segnini V. | Piter K./Sobaszkiewicz B. | 2:0 (6:2, 6:4) | details | 16.09.2011 |
| Quarter-finals | Koch-Benvenuto A./Tabak R. | Piter K./Sobaszkiewicz B. | 0:2 (0:6, 0:6) | details | 15.09.2011 |
| 1/8-finals | Alzate A./Pirazhenka S. | Piter K./Sobaszkiewicz B. | 1:2 (2:6, 6:3, 5:10) | details | 13.09.2011 |
Netherlands: Alphen - Doubles - Main |
| Final | Piter K./Sobaszkiewicz B. | Enache D./Harmsen D. | 1:2 (2:6, 7:64, 9:11) | details | 11.09.2011 |
| Semi-finals | Piter K./Sobaszkiewicz B. | Hogenkamp R./Pattinama Kerkhove L. | 2:1 (6:3, 3:6, 10:7) | details | 10.09.2011 |
| Quarter-finals | Piter K./Sobaszkiewicz B. | Vogt S./Werner S. | 2:1 (4:6, 6:1, 12:10) | details | 09.09.2011 |
| 1/8-finals | Piter K./Sobaszkiewicz B. | Van de Velde B./Van der Meet A. | 2:0 (6:3, 6:4) | details | 05.09.2011 |