 Australia: Australian Open - Singles - Qualification |
|---|
| Semi-finals | Mamiit C. | Willems R. | 2:0 (6:0, 6:2) | details | 11.01.2002 |
| Quarter-finals | Salzenstein J. | Willems R. | 0:2 (4:6, 4:6) | details | 09.01.2002 |
 USA: US Open - Singles - Qualification |
|---|
| Semi-finals | Burgsmuller L. | Willems R. | 2:0 (7:5, 6:4) | details | 24.08.2000 |
| Quarter-finals | Mor L. | Willems R. | 1:2 (6:2, 3:6, 4:6) | details | 22.08.2000 |
 United Kingdom: Wimbledon - Singles - Qualification |
|---|
| Final | Willems R. | Rochus O. | 2:3 (4:6, 6:1, 2:6, 6:2, 2:6) | details | 23.06.2000 |
| Semi-finals | Etlis G. | Willems R. | 0:2 (4:6, 6:7) | details | 21.06.2000 |
| Quarter-finals | Andersen J. | Willems R. | 1:2 (3:6, 6:3, 2:6) | details | 19.06.2000 |
 France: French Open - Singles - Qualification |
|---|
| Quarter-finals | Calleri A. | Willems R. | 2:0 (7:5, 6:2) | details | 22.05.2000 |
 Morocco: Casablanca - Singles - Main |
|---|
| 1/8-finals | Grosjean S. | Willems R. | 2:0 (6:3, 6:2) | details | 12.04.2000 |
| 1/16-finals | Popp A. | Willems R. | 0:2 (4:6, 0:6) | details | 10.04.2000 |
| Australia: Australian Open - Singles - Qualification |
|---|
| Semi-finals | Willems R. | Luxa P. | 0:2 (65:7, 2:6) | details | 15.01.1999 |
| Quarter-finals | Perlant J. | Willems R. | 0:2 (65:7, 65:7) | details | 13.01.1999 |
