| 1. Round | 07/08/1998 | Galatasaray | - | Altay Izmir | 3:1 |  |
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| 2. Round | 15/08/1998 | Altay Izmir | - | Trabzonspor | 2:5 | ||||
| 3. Round | 22/08/1998 | Sakaryaspor | - | Altay Izmir | 1:2 | ||||
| 4. Round | 27/08/1998 | Altay Izmir | - | Beşiktaş | 0:1 | ||||
| 5. Round | 12/09/1998 | MKE Ankaragücü | - | Altay Izmir | 2:1 | |
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| 6. Round | 19/09/1998 | Altay Izmir | - | Antalyaspor | 2:4 | ||||
| 7. Round | 26/09/1998 | Gaziantepspor | - | Altay Izmir | 1:1 | |
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| 8. Round | 17/10/1998 | Altay Izmir | - | Dardanelspor | 1:1 | |
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| 10. Round | 31/10/1998 | Kocaelispor | - | Altay Izmir | 2:1 | |
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| 31. Round | 09/05/1999 | Altay Izmir | - | Gençlerbirliği | 0:0 |
Turkey