 Australia: Sydney 2 - Doubles - Main |
|---|
| 1/16-finals | Nelson T./Shelton B. | Cash P./Masur W. | 2:1 (6:4, 2:6, 7:6) | details | 01.10.1990 |
 USA: US Open - Doubles - Main |
|---|
| 1/16-finals | Cash P./Masur W. | Castle A./Smith R. | 1:2 (6:2, 3:6, 4:6) | details | 30.08.1990 |
| 1/32-finals | Cahill D./Kratzmann M. | Cash P./Masur W. | 0:2 (4:6, 2:6) | details | 27.08.1990 |
| USA: New Haven 2 - Doubles - Main |
|---|
| 1/8-finals | Cash P./Masur W. | Annacone P./Wheaton D. | 0:2 (4:6, 3:6) | details | 15.08.1990 |
| 1/16-finals | Nelson T./Shelton B. | Cash P./Masur W. | 0:2 (4:6, 3:6) | details | 13.08.1990 |
 United Kingdom: London - Doubles - Main |
|---|
| 1/8-finals | Aldrich P./Visser D. | Cash P./Masur W. | 2:0 (6:3, 7:6) | details | 13.06.1990 |
| 1/16-finals | Cash P./Masur W. | Pawsat T./Woodbridge T. | 2:0 (6:3, 6:2) | details | 11.06.1990 |
 Hong Kong: Hong Kong - Doubles - Main |
|---|
| Final | Curren K./Rive J. | Cash P./Masur W. | 0:2 (3:6, 3:6) | details | 29.04.1990 |
| Semi-finals | Kinnear K./Pearce B. | Cash P./Masur W. | 0:2 (3:6, 5:7) | details | 28.04.1990 |
| Quarter-finals | Cash P./Masur W. | Evernden K./Pereira N. | 2:1 (4:6, 6:3, 6:4) | details | 25.04.1990 |
| 1/8-finals | Harrison R./Pang L. | Cash P./Masur W. | 0:2 (6:7, 2:6) | details | 23.04.1990 |
 South Korea: Seoul - Doubles - Main |
|---|
| 1/8-finals | Cash P./Masur W. | Jones K./Van't Hof R. | 1:2 (6:2, 4:6, 4:6) | details | 16.04.1990 |
