| 4. Round | 22/09/1998 | Amica Wronki | - | GKS Katowice | 4:0 | ||||
| 13. Round | 23/10/1998 | Odra Wodzisław | - | GKS Katowice | 0:2 |  |
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| 14. Round | 30/10/1998 | GKS Katowice | - | Polonia Warszawa | 1:3 |  |
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| 15. Round | 14/11/1998 | Zagłębie Lubin | - | GKS Katowice | 4:0 | ||||
| 19. Round | 19/03/1999 | GKS Katowice | - | Amica Wronki | 0:0 | ||||
| 26. Round | 11/05/1999 | GKS Katowice | - | Górnik Zabrze | 1:1 | ||||
| 27. Round | 15/05/1999 | Pogoń Szczecin | - | GKS Katowice | 1:0 | ||||
| 28. Round | 21/05/1999 | GKS Katowice | - | Odra Wodzisław | 1:1 | ||||
| 29. Round | 25/05/1999 | Polonia Warszawa | - | GKS Katowice | 2:0 | |
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| 30. Round | 28/05/1999 | GKS Katowice | - | Zagłębie Lubin | 2:2 |
Poland