| 1. Round | 07/08/1998 | Adanaspor | - | İstanbulspor AŞ | 0:1 |  |
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| 2. Round | 15/08/1998 | Erzurumspor (1968-2015) | - | Adanaspor | 1:0 | ||||
| 3. Round | 20/08/1998 | Adanaspor | - | Fenerbahçe | 0:3 | |
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| 4. Round | 29/08/1998 | Gençlerbirliği | - | Adanaspor | 2:1 | ||||
| 5. Round | 12/09/1998 | Dardanelspor | - | Adanaspor | 0:1 | ||||
| 6. Round | 19/09/1998 | Adanaspor | - | Samsunspor | 0:0 | ||||
| 12. Round | 14/11/1998 | Adanaspor | - | MKE Ankaragücü | 1:0 | ||||
| 14. Round | 26/11/1998 | Adanaspor | - | Gaziantepspor | 3:1 | ||||
| 15. Round | 05/12/1998 | Altay Izmir | - | Adanaspor | 3:2 |
Bulgaria