| 13. Ronde | 05.12.1998 | Atlético Madrid | - | Athletic Club | 0:0 | ||||
| 15. Ronde | 20.12.1998 | Villarreal CF | - | Athletic Club | 0:1 | ||||
| 16. Ronde | 03.01.1999 | Athletic Club | - | Real Valladolid | 2:1 | ||||
| 17. Ronde | 09.01.1999 | FC Barcelona | - | Athletic Club | 4:2 | ||||
| 19. Ronde | 23.01.1999 | Athletic Club | - | Real Betis | 0:0 | ||||
| 22. Ronde | 14.02.1999 | Athletic Club | - | CF Extremadura | 0:0 | ||||
| 23. Ronde | 20.02.1999 | Real Madrid | - | Athletic Club | 0:1 | ||||
| 24. Ronde | 27.02.1999 | Athletic Club | - | Celta de Vigo | 0:0 |  |
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| 25. Ronde | 07.03.1999 | Valencia CF | - | Athletic Club | 4:1 | |
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| 26. Ronde | 14.03.1999 | Athletic Club | - | UD Salamanca | 1:0 | ||||
| 27. Ronde | 20.03.1999 | Espanyol | - | Athletic Club | 1:1 | |
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| 28. Ronde | 04.04.1999 | Athletic Club | - | Real Sociedad | 0:0 | |
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| 36. Ronde | 29.05.1999 | Athletic Club | - | FC Barcelona | 1:3 | |
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| 38. Ronde | 20.06.1999 | Real Betis | - | Athletic Club | 1:4 |
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