1. Round | 29/08/1998 | Real Zaragoza | - | Athletic Bilbao | 2:0 | ||||
2. Round | 11/09/1998 | Athletic Bilbao | - | Racing Santander | 2:0 | ||||
3. Round | 19/09/1998 | CF Extremadura | - | Athletic Bilbao | 0:1 | ||||
4. Round | 25/09/1998 | Athletic Bilbao | - | Real Madrid | 2:3 | ||||
6. Round | 16/10/1998 | Athletic Bilbao | - | Valencia CF | 2:0 | ||||
7. Round | 24/10/1998 | UD Salamanca | - | Athletic Bilbao | 2:1 | ||||
8. Round | 30/10/1998 | Athletic Bilbao | - | Espanyol Barcelona | 2:2 | ||||
9. Round | 07/11/1998 | Real Sociedad | - | Athletic Bilbao | 3:1 | ||||
11. Round | 19/11/1998 | CD Tenerife | - | Athletic Bilbao | 0:1 | ||||
17. Round | 08/01/1999 | FC Barcelona | - | Athletic Bilbao | 4:2 | ||||
18. Round | 16/01/1999 | CD Alavés | - | Athletic Bilbao | 1:2 | ||||
19. Round | 22/01/1999 | Athletic Bilbao | - | Real Betis | 0:0 | ||||
20. Round | 29/01/1999 | Athletic Bilbao | - | Real Zaragoza | 2:0 |