 Czech Republic: Prague - Singles - Main |
|---|
| 1/8-finals | De La Pena H. | Aguilera J. | 2:0 (6:2, 6:3) | details | 07.08.1991 |
| 1/16-finals | Aguilera J. | Kodes J. | 2:0 (6:3, 6:4) | details | 05.08.1991 |
 Sweden: Bastad - Singles - Main |
|---|
| 1/16-finals | Pernfors M. | Aguilera J. | 2:0 (6:3, 6:3) | details | 08.07.1991 |
 United Kingdom: Wimbledon - Singles - Main |
|---|
| 1/64-finals | Ferreira W. | Aguilera J. | 3:0 (6:4, 6:3, 6:3) | details | 01.07.1991 |
 France: French Open - Singles - Main |
|---|
| 1/64-finals | Ondruska M. | Aguilera J. | 3:1 (3:6, 7:5, 6:3, 6:2) | details | 03.06.1991 |
 Italy: Rome - Singles - Main |
|---|
| 1/16-finals | Aguilera J. | Koevermans M. | 0:2 (2:6, 2:6) | details | 15.05.1991 |
| 1/32-finals | Cash P. | Aguilera J. | 1:2 (6:3, 4:6, 1:6) | details | 13.05.1991 |
 Germany: Hamburg - Singles - Main |
|---|
| 1/32-finals | Aguilera J. | Arrese J. | 0:2 (2:6, 5:7) | details | 06.05.1991 |
| Germany: Munich - Singles - Main |
|---|
| 1/16-finals | Perez-Roldan G. | Aguilera J. | 2:0 (6:3, 6:0) | details | 29.04.1991 |
 Monaco: Monte Carlo - Singles - Main |
|---|
| 1/16-finals | Aguilera J. | Pistolesi C. | 1:2 (3:6, 6:1, 5:7) | details | 23.04.1991 |
| 1/32-finals | Lundgren P. | Aguilera J. | 0:2 (1:6, 4:6) | details | 22.04.1991 |
| France: Nice - Singles - Main |
|---|
| 1/16-finals | Furlan R. | Aguilera J. | 2:0 (7:63, 6:0) | details | 15.04.1991 |
 Spain: Barcelona - Singles - Main |
|---|
| 1/32-finals | Gustafsson M. | Aguilera J. | 2:0 (6:4, 6:0) | details | 08.04.1991 |
 Portugal: Estoril - Singles - Main |
|---|
| 1/16-finals | Vajda M. | Aguilera J. | 2:1 (7:5, 3:6, 6:2) | details | 01.04.1991 |
 USA: Miami - Singles - Main |
|---|
| 1/16-finals | Aguilera J. | Stich M. | 0:2 (4:6, 2:6) | details | 18.03.1991 |
| 1/32-finals | Aguilera J. | Oncins J. | 2:1 (6:3, 3:6, 7:5) | details | 17.03.1991 |
| USA: Indian Wells - Singles - Main |
|---|
| 1/32-finals | Aguilera J. | Bryan S. | 0:2 (3:6, 1:6) | details | 04.03.1991 |
| Germany: Stuttgart 1 - Singles - Main |
|---|
| 1/16-finals | Aguilera J. | Forget G. | 0:2 (2:6, 3:6) | details | 18.02.1991 |
 Belgium: Brussels - Singles - Main |
|---|
| 1/16-finals | Cherkasov A. | Aguilera J. | 2:0 (6:2, 6:2) | details | 11.02.1991 |
 Brazil: Itaparica - Singles - Main |
|---|
| 1/16-finals | Aguilera J. | Marcelino D. | 0:2 (6:7, 3:6) | details | 05.11.1990 |
| France: Paris - Singles - Main |
|---|
| 1/16-finals | Aguilera J. | Courier J. | 0:2 (1:6, 2:6) | details | 31.10.1990 |
| Italy: Palermo - Singles - Main |
|---|
| Final | Davin F. | Aguilera J. | 2:0 (6:1, 6:1) | details | 30.09.1990 |
| Semi-finals | Aguilera J. | Perez-Roldan G. | 2:0 (6:2, 6:3) | details | 29.09.1990 |
| Quarter-finals | Pistolesi C. | Aguilera J. | 0:2 (4:6, 4:6) | details | 28.09.1990 |
| 1/8-finals | Sanchez J. | Aguilera J. | 0:2 (6:7, 4:6) | details | 26.09.1990 |
| 1/16-finals | Pescosolido S. | Aguilera J. | 1:1 RET. (3:6, 6:4, 1:3) | details | 24.09.1990 |
| France: Bordeaux - Singles - Main |
|---|
| 1/16-finals | Aguilera J. | Champion T. | 1:2 (2:6, 7:5, 6:7) | details | 10.09.1990 |
| USA: US Open - Singles - Main |
|---|
| 1/64-finals | Aguilera J. | Becker B. | 0:3 (5:7, 3:6, 2:6) | details | 27.08.1990 |
| Italy: Sanremo - Singles - Main |
|---|
| Final | Arrese J. | Aguilera J. | 2:0 (6:2, 6:2) | details | 05.08.1990 |
| Semi-finals | Azar R. | Aguilera J. | 0:2 (6:7, 2:6) | details | 04.08.1990 |
| Quarter-finals | Camporese O. | Aguilera J. | 0:2 (3:6, 2:6) | details | 02.08.1990 |
| 1/8-finals | Yunis F. | Aguilera J. | 1:2 (6:3, 4:6, 0:6) | details | 01.08.1990 |
| 1/16-finals | Nastase M. | Aguilera J. | 0:2 (0:6, 3:6) | details | 30.07.1990 |
 Netherlands: Hilversum - Singles - Main |
|---|
| 1/8-finals | Aguilera J. | Masso E. | 1:2 (3:6, 6:3, 2:6) | details | 24.07.1990 |
| 1/16-finals | Aguilera J. | Vajda M. | 2:0 (6:4, 7:5) | details | 23.07.1990 |
| Germany: Stuttgart - Singles - Main |
|---|
| 1/16-finals | Aguilera J. | Masur W. | 0:2 (6:7, 5:7) | details | 17.07.1990 |
 Switzerland: Gstaad - Singles - Main |
|---|
| 1/8-finals | Aguilera J. | Bruguera S. | 0:2 (3:6, 4:6) | details | 11.07.1990 |
| 1/16-finals | Aguilera J. | Suk C. | 2:1 (7:6, 2:6, 7:5) | details | 09.07.1990 |
| United Kingdom: Wimbledon - Singles - Main |
|---|
| 1/16-finals | Aguilera J. | Cash P. | 0:3 (1:6, 1:6, 4:6) | details | 02.07.1990 |
| 1/32-finals | Ferreira W. | Aguilera J. | 0:3 (3:6, 6:7, 5:7) | details | 01.07.1990 |
| 1/64-finals | Strelba M. | Aguilera J. | 0:3 (3:6, 5:7, 3:6) | details | 30.06.1990 |
| France: French Open - Singles - Main |
|---|
| 1/32-finals | Champion T. | Aguilera J. | 3:1 (3:6, 6:3, 6:3, 6:2) | details | 31.05.1990 |
| 1/64-finals | Washington M. | Aguilera J. | 1:3 (5:7, 6:4, 1:6, 2:6) | details | 28.05.1990 |
| Italy: Rome - Singles - Main |
|---|
| 1/32-finals | Volkov A. | Aguilera J. | 2:1 (6:3, 1:6, 6:4) | details | 14.05.1990 |
| Germany: Hamburg - Singles - Main |
|---|
| Final | Becker B. | Aguilera J. | 0:3 (1:6, 0:6, 6:7) | details | 13.05.1990 |
| Semi-finals | Forget G. | Aguilera J. | 0:2 (5:7, 6:7) | details | 12.05.1990 |
| Quarter-finals | Aguilera J. | Gustafsson M. | 2:0 (6:1, 6:4) | details | 11.05.1990 |
| 1/8-finals | Aguilera J. | Courier J. | 2:1 (1:6, 6:4, 6:4) | details | 09.05.1990 |
