| 16. Round | 12/12/1998 | Adanaspor | - | Bursaspor | 4:1 | ||||
| 17. Round | 19/12/1998 | Kocaelispor | - | Adanaspor | 2:1 | ||||
| 18. Round | 30/01/1999 | İstanbulspor AŞ | - | Adanaspor | 6:0 | ||||
| 19. Round | 06/02/1999 | Adanaspor | - | Erzurumspor (1968-2015) | 2:0 | ||||
| 20. Round | 13/02/1999 | Fenerbahçe | - | Adanaspor | 6:0 | ||||
| 21. Round | 20/02/1999 | Adanaspor | - | Gençlerbirliği | 1:1 | ||||
| 22. Round | 27/02/1999 | Adanaspor | - | Dardanelspor | 3:0 | ||||
| 25. Round | 18/03/1999 | Galatasaray | - | Adanaspor | 1:1 | ||||
| 26. Round | 01/04/1999 | Adanaspor | - | Trabzonspor | 0:2 | ||||
| 27. Round | 10/04/1999 | Sakaryaspor | - | Adanaspor | 0:0 |  |
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| 28. Round | 16/04/1999 | Adanaspor | - | Beşiktaş | 0:1 | |
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| 30. Round | 01/05/1999 | Adanaspor | - | Antalyaspor | 4:2 | ||||
| 31. Round | 09/05/1999 | Gaziantepspor | - | Adanaspor | 3:1 | |
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| 32. Round | 15/05/1999 | Adanaspor | - | Altay Izmir | 2:0 | |
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| 34. Round | 29/05/1999 | Adanaspor | - | Kocaelispor | 1:1 |
Bulgaria