| 1. Round | 24/07/1998 | GKS Bełchatów | - | Polonia Warszawa | 0:1 | ||||
| 2. Round | 01/08/1998 | Polonia Warszawa | - | Wisła Kraków | 1:3 | ||||
| 6. Round | 28/08/1998 | Polonia Warszawa | - | Pogoń Szczecin | 2:2 |  |
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| 7. Round | 08/09/1998 | Odra Wodzisław | - | Polonia Warszawa | 2:2 |  |
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| 8. Round | 12/09/1998 | Widzew Łódź | - | Polonia Warszawa | 4:1 | ||||
| 9. Round | 18/09/1998 | Polonia Warszawa | - | Zagłębie Lubin | 3:1 | ||||
| 4. Round | 22/09/1998 | Polonia Warszawa | - | ŁKS Łódź | 2:1 | |
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| 11. Round | 02/10/1998 | Polonia Warszawa | - | Lech Poznań | 1:2 | ||||
| 12. Round | 17/10/1998 | Ruch Radzionków | - | Polonia Warszawa | 0:0 | ||||
| 13. Round | 23/10/1998 | Polonia Warszawa | - | Amica Wronki | 4:2 | |
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| 14. Round | 30/10/1998 | GKS Katowice | - | Polonia Warszawa | 1:3 | |
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| 15. Round | 13/11/1998 | Polonia Warszawa | - | Legia Warszawa | 0:0 | |
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| 3. Round | 17/11/1998 | Ruch Chorzów | - | Polonia Warszawa | 0:0 |
Lithuania