| 1. Round | 10/08/2018 | MKE Ankaragücü | - | Galatasaray | 1:3 |  |
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| 4. Round | 01/09/2018 | Trabzonspor | - | Galatasaray | 4:0 | ||||
| 5. Round | 14/09/2018 | Galatasaray | - | Kasımpaşa SK | 4:1 |  |
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| 6. Round | 23/09/2018 | Akhisar Belediyespor | - | Galatasaray | 3:0 | ||||
| 7. Round | 28/09/2018 | Galatasaray | - | BB Erzurumspor | 1:0 | ||||
| 8. Round | 06/10/2018 | Antalyaspor | - | Galatasaray | 0:1 | ||||
| 9. Round | 19/10/2018 | Galatasaray | - | Bursaspor | 1:1 | ||||
| 10. Round | 28/10/2018 | Yeni Malatyaspor | - | Galatasaray | 2:0 | ||||
| 11. Round | 02/11/2018 | Galatasaray | - | Fenerbahçe | 2:2 | ||||
| 15. Round | 08/12/2018 | Galatasaray | - | Çaykur Rizespor | 2:2 | |
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| 16. Round | 15/12/2018 | İstanbul Başakşehir | - | Galatasaray | 1:1 | ||||
| 17. Round | 23/12/2018 | Galatasaray | - | Sivasspor | 4:2 |
Netherlands