| 1. Ronde | 30.08.1998 | Real Zaragoza | - | Athletic Club | 2:0 | ||||
| 2. Ronde | 12.09.1998 | Athletic Club | - | Racing Santander | 2:0 | ||||
| 3. Ronde | 20.09.1998 | CF Extremadura | - | Athletic Club | 0:1 | ||||
| 5. Ronde | 04.10.1998 | Celta de Vigo | - | Athletic Club | 3:2 | ||||
| 33. Ronde | 09.05.1999 | Deportivo La Coruña | - | Athletic Club | 1:1 | ||||
| 34. Ronde | 16.05.1999 | Athletic Club | - | Villarreal CF | 2:0 | ||||
| 35. Ronde | 23.05.1999 | Real Valladolid | - | Athletic Club | 0:3 |  |
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| 36. Ronde | 29.05.1999 | Athletic Club | - | FC Barcelona | 1:3 | |
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| 37. Ronde | 13.06.1999 | Athletic Club | - | Deportivo Alavés | 5:0 | |
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| 38. Ronde | 20.06.1999 | Real Betis | - | Athletic Club | 1:4 |
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