Stadium: Clay 5 Round: 25 Ground: Clay
| Istanbul, Turkey | 2018/09/08 12:00 | Mert Naci Turker v Wang, Tak Khunn | 4-6,1-6 |
| ITF Belarus F3 | 2018/08/21 07:00 | Mert Naci Turker v Bondarevskiy, Yan | 4-6,4-6 |
| ITF Belarus F3 | 2018/08/20 10:55 | Mert Naci Turker v Beran, Martin | 7-5,4-6,6-4 |
| ITF Belarus F3 | 2018/08/19 07:00 | Mert Naci Turker v Zura Tkemaladze | 6-2,7-5 |
| ITF Belarus F2 | 2018/08/14 07:00 | Mert Naci Turker v Ivan Liutarevich | 6-2,6-7,1-6 |
| ITF Belarus F2 | 2018/08/12 09:35 | Mert Naci Turker v Achour, Nazar | 6-3,6-4 |
| ITF Belarus F2 | 2018/08/11 11:30 | Mert Naci Turker v Tybar, Maxim | 7-5,6-4 |
| ITF Turkey F22 | 2018/06/08 10:30 | Mert Naci Turker v Statzberger, Thomas | 3-6,3-6 |
| ITF Turkey F28 | 2018/09/18 07:30 | Brechemier, Thomas v Katic, Dejan | 2-6,6-7 |
| Serbia F5, Singles | 2018/09/09 10:00 | Katic, Dejan v Butsch, Justin | 6-4,7-5 |
| Serbia F5, Singles | 2018/09/08 11:00 | Denis Klok v Katic, Dejan | 3-6,6-3,1-6 |
| Serbia F5, Singles | 2018/09/07 09:15 | Katic, Dejan v Daljev, Pavle | 7-6,6-3 |
| Serbia F5, Singles | 2018/09/06 10:50 | Katic, Dejan v Gatev, Maximilian | 6-3,6-1 |
| Serbia F5, Singles | 2018/09/04 08:00 | Katic, Dejan v Liska, Tomas | 7-6,6-1 |
| ITF Serbia F4 | 2018/08/30 11:35 | Duje Ajdukovic v Katic, Dejan | 6-3,7-6 |
| ITF Serbia F4 | 2018/08/29 11:55 | Puric, Nikola v Katic, Dejan | 1-6,1-6 |