France: French Open - Singles - Qualification |
| Quarter-finals | Llodra M. | Van Garsse C. | 2:0 (6:4, 6:1) | dettagli | 17.05.1999 |
Australia: Australian Open - Singles - Qualification |
| Semi-finals | Caldwell D. | Van Garsse C. | 2:1 (3:6, 6:2, 6:2) | dettagli | 15.01.1999 |
| Quarter-finals | Larkham T. | Van Garsse C. | 0:2 (4:6, 4:6) | dettagli | 13.01.1999 |
Qatar: Doha - Singles - Main |
| 1/8-finals | Van Garsse C. | Ivanisevic G. | 0:2 (3:6, 0:6) | dettagli | 06.01.1999 |
| 1/16-finals | Dewulf F. | Van Garsse C. | 0:2 (1:6, 63:7) | dettagli | 04.01.1999 |
USA: Washington - Singles - Main |
| 1/8-finals | Van Garsse C. | Agassi A. | 0:2 (3:6, 4:6) | dettagli | 23.07.1998 |
| 1/16-finals | Nestor D. | Van Garsse C. | 1:2 (7:65, 3:6, 3:6) | dettagli | 22.07.1998 |
| 1/32-finals | Van Garsse C. | Hadad M. | 2:0 (6:3, 6:4) | dettagli | 20.07.1998 |
United Kingdom: Wimbledon - Singles - Main |
| 1/64-finals | Van Garsse C. | Mantilla F. | 2:3 (2:6, 2:6, 6:1, 6:4, 3:6) | dettagli | 30.06.1998 |
United Kingdom: Wimbledon - Singles - Qualification |
| Final | Van Garsse C. | Bhupathi M. | 0:2 (6:7, 2:6) | dettagli | 20.06.1998 |
| Semi-finals | Van Garsse C. | Sela O. | 2:0 (6:4, 6:4) | dettagli | 19.06.1998 |
| Quarter-finals | Van Garsse C. | Ullyett K. | 2:0 (6:1, 6:2) | dettagli | 17.06.1998 |
France: French Open - Singles - Main |
| 1/16-finals | Van Garsse C. | Muster T. | 1:3 (2:6, 6:4, 63:7, 2:6) | dettagli | 30.05.1998 |
| 1/32-finals | Draper S. | Van Garsse C. | 2:3 (3:6, 6:3, 7:65, 62:7, 2:6) | dettagli | 28.05.1998 |
| 1/64-finals | Craca M. | Van Garsse C. | 0:3 (1:6, 1:6, 1:6) | dettagli | 25.05.1998 |
France: French Open - Singles - Qualification |
| Final | Behr N. | Van Garsse C. | 0:2 (1:6, 1:6) | dettagli | 22.05.1998 |
Germany: Munich - Singles - Main |
| 1/8-finals | Van Garsse C. | Bjorkman J. | 0:1 RET. (4:6, 0:2) | dettagli | 28.04.1998 |
| 1/16-finals | Van Garsse C. | Steven B. | 2:0 (7:5, 6:1) | dettagli | 27.04.1998 |
Australia: Australian Open - Singles - Main |
| 1/32-finals | Woodbridge T. | Van Garsse C. | 3:1 (6:4, 4:6, 6:3, 6:4) | dettagli | 25.01.1998 |
| 1/64-finals | Ruud C. | Van Garsse C. | 2:3 (64:7, 6:4, 6:1, 4:6, 3:6) | dettagli | 23.01.1998 |
Australia: Australian Open - Singles - Qualification |
| Final | Van Garsse C. | Ellwood B. | 2:0 (6:3, 6:4) | dettagli | 22.01.1998 |
France: Lyon 2 - Singles - Main |
| 1/16-finals | Van Garsse C. | Santoro F. | 0:2 (3:6, 2:6) | dettagli | 13.10.1997 |
United Kingdom: Bournemouth - Singles - Main |
| Quarter-finals | Van Garsse C. | Mantilla F. | 0:2 (3:6, 64:7) | dettagli | 12.09.1997 |
| 1/8-finals | Santoro F. | Van Garsse C. | 1:2 (7:65, 3:6, 62:7) | dettagli | 10.09.1997 |
| 1/16-finals | Squillari F. | Van Garsse C. | 0:2 (2:6, 68:7) | dettagli | 08.09.1997 |
USA: US Open - Singles - Qualification |
| Final | Black W. | Van Garsse C. | 2:1 (6:1, 2:6, 6:2) | dettagli | 22.08.1997 |
| Semi-finals | Kempes E. | Van Garsse C. | 0:2 (2:6, 3:6) | dettagli | 21.08.1997 |
| Quarter-finals | Munoz-Hernandez J. | Van Garsse C. | 0:2 (4:6, 0:6) | dettagli | 19.08.1997 |
United Kingdom: Wimbledon - Singles - Main |
| 1/16-finals | Rafter P. | Van Garsse C. | 3:1 (7:5, 6:4, 4:6, 6:3) | dettagli | 28.06.1997 |
Italy: Bologna - Singles - Main |
| 1/16-finals | Sanchez J. | Van Garsse C. | 2:0 (6:4, 6:4) | dettagli | 09.06.1997 |
Belgium: Antwerp 2 - Singles - Main |
| 1/8-finals | Goellner M. | Van Garsse C. | 2:0 (6:3, 6:4) | dettagli | 18.02.1997 |
| 1/16-finals | Van Garsse C. | Furlan R. | 2:0 (7:5, 6:3) | dettagli | 17.02.1997 |
San Marino: San Marino - Singles - Main |
| Semi-finals | Van Garsse C. | Costa C. | 0:2 (64:7, 2:6) | dettagli | 13.08.1994 |
| Quarter-finals | Furlan R. | Van Garsse C. | 0:2 (4:6, 4:6) | dettagli | 11.08.1994 |
| 1/8-finals | Van Garsse C. | Larsson M. | 2:1 (5:7, 7:66, 6:4) | dettagli | 10.08.1994 |
| 1/16-finals | Van Garsse C. | Voinea A. | 2:0 (6:2, 6:2) | dettagli | 08.08.1994 |