Australia: Australian Open - Doubles - Main |
| 1/32-finals | Davis M./Drewett B. | Frana J./Miniussi C. | 0:2 (6:7, 4:6) | details | 14.01.1991 |
Australia: Sydney 2 - Doubles - Main |
| 1/8-finals | Grabb J./Reneberg R. | Drewett B./Fromberg R. | 2:0 (6:2, 7:6) | details | 03.10.1990 |
| 1/16-finals | Drewett B./Fromberg R. | Chamberlin P./Van't Hof R. | 2:0 (7:5, 6:3) | details | 01.10.1990 |
Australia: Brisbane - Doubles - Main |
| 1/8-finals | Chamberlin P./Drewett B. | Stolle S./Wells-Roth D. | 0:2 (3:6, 4:6) | details | 24.09.1990 |
United Kingdom: Wimbledon - Doubles - Main |
| 1/8-finals | Drewett B./Masur W. | Connell G./Michibata G. | 1:3 (6:3, 3:6, 6:7, 6:7) | details | 03.07.1990 |
| 1/16-finals | Riglewski U./Stich M. | Drewett B./Masur W. | 1:3 (2:6, 2:6, 7:6, 6:7) | details | 01.07.1990 |
| 1/32-finals | Drewett B./Masur W. | Antonitsch A./Castle A. | 3:0 (7:6, 6:4, 6:4) | details | 30.06.1990 |
Singapore: Singapore - Doubles - Main |
| Final | Drewett B./Woodbridge T. | Kratzmann M./Stoltenberg J. | 0:2 (1:6, 0:6) | details | 06.05.1990 |
| Semi-finals | Connell G./Michibata G. | Drewett B./Woodbridge T. | 1:2 (5:7, 6:4, 5:7) | details | 05.05.1990 |
| Quarter-finals | Odizor N./Wekesa P. | Drewett B./Woodbridge T. | 0:2 (4:6, 1:6) | details | 02.05.1990 |
| 1/8-finals | Laurendeau M./Nyborg P. | Drewett B./Woodbridge T. | 1:2 (6:4, 4:6, 5:7) | details | 30.04.1990 |
Japan: Tokyo - Doubles - Main |
| Quarter-finals | Davis S./Pate D. | Drewett B./Stoltenberg J. | 2:0 (6:1, 6:1) | details | 13.04.1990 |
| 1/8-finals | Drewett B./Stoltenberg J. | Cannon S./Garnett B. | 2:0 (7:6, 6:3) | details | 11.04.1990 |
| 1/16-finals | Petchey M./Sapsford D. | Drewett B./Stoltenberg J. | 0:2 (3:6, 2:6) | details | 09.04.1990 |
Australia: Australian Open - Doubles - Main |
| 1/8-finals | Cahill D./Kratzmann M. | Drewett B./Masur W. | 2:0 (6:3, 6:4) | details | 21.01.1990 |
| 1/16-finals | Drewett B./Masur W. | Lozano J./Witsken T. | 2:0 (6:3, 6:3) | details | 17.01.1990 |
| 1/32-finals | Drewett B./Masur W. | Mronz A./Schapers M. | 2:1 (6:4, 4:6, 7:6) | details | 15.01.1990 |
Australia: Sydney - Doubles - Main |
| 1/8-finals | Dyke B./Nijssen T. | Drewett B./Masur W. | 2:0 (6:4, 6:4) | details | 08.01.1990 |