 USA: Memphis - Doubles - Main |
|---|
| 1/8-finals | Alonso J./Balcells J. | Johnson D./Montana F. | 0:2 (4:6, 4:6) | details | 16.02.2000 |
| 1/16-finals | Alonso J./Balcells J. | Kilderry P./Silcock G. | 2:0 (7:5, 6:1) | details | 14.02.2000 |
 Spain: Mallorca - Doubles - Main |
|---|
| Semi-finals | Berasategui A./Roig F. | Alonso J./Balcells J. | 2:1 (7:5, 68:7, 6:2) | details | 18.09.1999 |
| Quarter-finals | Nicolas E./Puentes-Alcaniz G. | Alonso J./Balcells J. | 0:2 (4:6, 4:6) | details | 15.09.1999 |
| 1/8-finals | Alonso J./Balcells J. | Knippschild J./Prinosil D. | 2:0 (7:5, 6:4) | details | 13.09.1999 |
| Spain: Barcelona - Doubles - Main |
|---|
| Quarter-finals | Alonso J./Balcells J. | Haarhuis P./Kafelnikov Y. | 0:2 (2:6, 3:6) | details | 15.04.1999 |
| 1/8-finals | Ardinghi M./Lopez-Moron A. | Alonso J./Balcells J. | 1:2 (7:5, 3:6, 1:6) | details | 14.04.1999 |
| 1/16-finals | Alonso J./Balcells J. | Peterson A./Taino E. | 2:0 (7:6, 6:3) | details | 12.04.1999 |
 Australia: Australian Open - Doubles - Main |
|---|
| 1/32-finals | Alonso J./Balcells J. | Roditi D./Tebbutt M. | 0:2 (3:6, 3:6) | details | 18.01.1999 |
| Spain: Barcelona - Doubles - Main |
|---|
| Quarter-finals | Oosting M./Siemerink J. | Alonso J./Balcells J. | 2:0 (6:3, 6:3) | details | 18.04.1997 |
| 1/8-finals | Alonso J./Balcells J. | Hrbaty D./Kucera K. | 2:1 (4:6, 7:5, 7:6) | details | 16.04.1997 |
