| 6. Ronde | 17.10.1998 | Athletic Club | - | Valencia CF | 2:0 | ||||
| 8. Ronde | 31.10.1998 | Athletic Club | - | Espanyol | 2:2 | ||||
| 9. Ronde | 08.11.1998 | Real Sociedad | - | Athletic Club | 3:1 | ||||
| 11. Ronde | 20.11.1998 | CD Tenerife | - | Athletic Club | 0:1 | ||||
| 16. Ronde | 03.01.1999 | Athletic Club | - | Real Valladolid | 2:1 | ||||
| 18. Ronde | 17.01.1999 | Deportivo Alavés | - | Athletic Club | 1:2 | ||||
| 24. Ronde | 27.02.1999 | Athletic Club | - | Celta de Vigo | 0:0 | ||||
| 26. Ronde | 14.03.1999 | Athletic Club | - | UD Salamanca | 1:0 | ||||
| 28. Ronde | 04.04.1999 | Athletic Club | - | Real Sociedad | 0:0 |
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