| 13. Ronde | 28.11.1999 | Rayo Vallecano | - | Athletic Club | 1:2 | ||||
| 15. Ronde | 12.12.1999 | Celta de Vigo | - | Athletic Club | 1:1 |  |
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| 17. Ronde | 22.12.1999 | Racing Santander | - | Athletic Club | 2:2 | ||||
| 18. Ronde | 05.01.2000 | Athletic Club | - | Espanyol | 2:1 | ||||
| 19. Ronde | 09.01.2000 | Deportivo Alavés | - | Athletic Club | 1:2 | ||||
| 25. Ronde | 19.02.2000 | Deportivo La Coruña | - | Athletic Club | 2:0 | |
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| 31. Ronde | 02.04.2000 | Atlético Madrid | - | Athletic Club | 1:2 | ||||
| 33. Ronde | 16.04.2000 | Real Sociedad | - | Athletic Club | 4:1 | ||||
| 34. Ronde | 22.04.2000 | Athletic Club | - | Celta de Vigo | 1:0 | ||||
| 35. Ronde | 30.04.2000 | Real Zaragoza | - | Athletic Club | 0:0 | |
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| 36. Ronde | 07.05.2000 | Athletic Club | - | Racing Santander | 2:2 | ||||
| 37. Ronde | 14.05.2000 | Espanyol | - | Athletic Club | 0:0 | ||||
| 38. Ronde | 19.05.2000 | Athletic Club | - | Deportivo Alavés | 2:1 |
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