Japan: Tokyo - Doubles - Main |
| 1/8-finals | Kinnear K./Pearce B. | Cash P./Edberg S. | 2:1 (6:3, 3:6, 6:4) | details | 11.04.1990 |
| 1/16-finals | Cash P./Edberg S. | Antonitsch A./Castle A. | 2:0 (6:3, 6:4) | details | 09.04.1990 |
Australia: Australian Open - Doubles - Main |
| Quarter-finals | Leach R./Pugh J. | Cash P./Edberg S. | 3:2 (3:6, 7:5, 7:6, 3:6, 6:4) | details | 24.01.1990 |
| 1/8-finals | Woodbridge T./Youl S. | Cash P./Edberg S. | WO. | details | 21.01.1990 |
| 1/16-finals | Korda P./Suk C. | Cash P./Edberg S. | 1:2 (6:7, 6:3, 4:6) | details | 17.01.1990 |
| 1/32-finals | Cash P./Edberg S. | Pawsat T./Warder L. | 2:0 (7:6, 6:2) | details | 15.01.1990 |