| 2. Round | 31/07/1998 | Lech Poznań | - | GKS Katowice | 3:1 | ||||
| 3. Round | 07/08/1998 | GKS Katowice | - | Ruch Radzionków | 1:0 | ||||
| 5. Round | 21/08/1998 | GKS Katowice | - | Widzew Łódź | 0:2 | ||||
| 7. Round | 08/09/1998 | GKS Bełchatów | - | GKS Katowice | 1:2 |  |
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| 8. Round | 11/09/1998 | GKS Katowice | - | Wisła Kraków | 1:2 | ||||
| 9. Round | 19/09/1998 | Ruch Chorzów | - | GKS Katowice | 2:1 | ||||
| 10. Round | 25/09/1998 | GKS Katowice | - | ŁKS Łódź | 1:1 | ||||
| 11. Round | 01/10/1998 | Górnik Zabrze | - | GKS Katowice | 2:1 | ||||
| 16. Round | 26/02/1999 | Stomil Olsztyn | - | GKS Katowice | 2:1 | ||||
| 17. Round | 06/03/1999 | GKS Katowice | - | Lech Poznań | 1:2 | ||||
| 18. Round | 12/03/1999 | Ruch Radzionków | - | GKS Katowice | 1:1 |  |
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| 19. Round | 19/03/1999 | GKS Katowice | - | Amica Wronki | 0:0 | |
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| 20. Round | 01/04/1999 | Widzew Łódź | - | GKS Katowice | 1:0 | |
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| 21. Round | 09/04/1999 | Legia Warszawa | - | GKS Katowice | 0:0 | ||||
| 22. Round | 16/04/1999 | GKS Katowice | - | GKS Bełchatów | 1:1 | ||||
| 23. Round | 22/04/1999 | Wisła Kraków | - | GKS Katowice | 4:1 | ||||
| 24. Round | 29/04/1999 | GKS Katowice | - | Ruch Chorzów | 0:1 | ||||
| 25. Round | 07/05/1999 | ŁKS Łódź | - | GKS Katowice | 3:2 | |
Poland