 Brazil: Sao Paulo 2 - Doubles - Main |
|---|
| Quarter-finals | Mattar L./Pereira N. | Gomez A./Oncins J. | WO. | details | 06.11.1991 |
| 1/8-finals | Mattar L./Pereira N. | Muster T./Roese F. | 2:1 (6:7, 6:4, 6:4) | details | 04.11.1991 |
| Brazil: Buzios - Doubles - Main |
|---|
| Quarter-finals | Casal S./Sanchez E. | Mattar L./Pereira N. | 2:0 (7:5, 6:3) | details | 30.10.1991 |
| 1/8-finals | Mattar L./Pereira N. | Delaitre O./Fleurian J. | 2:0 (6:1, 6:4) | details | 28.10.1991 |
| Brazil: Guaruja - Doubles - Main |
|---|
| 1/8-finals | Mattar L./Pereira N. | Marcelino D./Motta C. | 0:2 (6:7, 4:6) | details | 21.10.1991 |
 Italy: Rome - Doubles - Main |
|---|
| 1/8-finals | Camporese O./Ivanisevic G. | Mattar L./Pereira N. | 2:0 (6:3, 6:1) | details | 15.05.1991 |
| 1/16-finals | Mattar L./Pereira N. | Bates J./Brown N. | 2:0 (6:3, 7:6) | details | 13.05.1991 |
 New Zealand: Wellington - Doubles - Main |
|---|
| Final | Letts J./Oncins J. | Mattar L./Pereira N. | 1:2 (6:4, 6:7, 2:6) | details | 06.01.1991 |
| Semi-finals | Mattar L./Pereira N. | Beckman C./Cannon S. | 2:0 (6:4, 7:6) | details | 05.01.1991 |
| Quarter-finals | Novacek K./Pimek L. | Mattar L./Pereira N. | 1:2 (6:2, 2:6, 2:6) | details | 02.01.1991 |
| 1/8-finals | Flegl V./Vacek D. | Mattar L./Pereira N. | 1:2 (6:4, 3:6, 2:6) | details | 31.12.1990 |
