| 12. Round | 16/10/1998 | GKS Bełchatów | - | ŁKS Łódź | 2:3 | ||||
| 13. Round | 23/10/1998 | Górnik Zabrze | - | GKS Bełchatów | 1:3 | ||||
| 14. Round | 30/10/1998 | GKS Bełchatów | - | Pogoń Szczecin | 2:0 | ||||
| 15. Round | 13/11/1998 | Odra Wodzisław | - | GKS Bełchatów | 0:0 | ||||
| 3. Round | 17/11/1998 | GKS Bełchatów | - | Stomil Olsztyn | 1:0 | ||||
| 16. Round | 26/02/1999 | Polonia Warszawa | - | GKS Bełchatów | 4:0 |  |
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| 17. Round | 05/03/1999 | GKS Bełchatów | - | Zagłębie Lubin | 0:1 | ||||
| 18. Round | 13/03/1999 | Stomil Olsztyn | - | GKS Bełchatów | 0:2 |  |
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| 19. Round | 19/03/1999 | GKS Bełchatów | - | Lech Poznań | 1:3 | ||||
| 20. Round | 02/04/1999 | Ruch Radzionków | - | GKS Bełchatów | 1:1 | ||||
| 21. Round | 09/04/1999 | GKS Bełchatów | - | Amica Wronki | 1:1 | ||||
| 22. Round | 16/04/1999 | GKS Katowice | - | GKS Bełchatów | 1:1 | ||||
| 23. Round | 23/04/1999 | GKS Bełchatów | - | Legia Warszawa | 1:2 | ||||
| 24. Round | 30/04/1999 | Widzew Łódź | - | GKS Bełchatów | 1:0 | |
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| 25. Round | 07/05/1999 | Wisła Kraków | - | GKS Bełchatów | 4:0 | ||||
| 26. Round | 11/05/1999 | GKS Bełchatów | - | Ruch Chorzów | 0:2 | ||||
| 28. Round | 21/05/1999 | GKS Bełchatów | - | Górnik Zabrze | 1:1 | ||||
| 29. Round | 25/05/1999 | Pogoń Szczecin | - | GKS Bełchatów | 1:0 |
Poland