Stadium: Clay 6 Round: 25 Ground: Hardcourt outdoor
| ITF Turkey F30 | 2018/10/04 07:00 | Juan Pablo Paz v Cengiz Aksu | 5-7,6-4,6-0 |
| ITF Turkey F30 | 2018/10/03 07:00 | Cengiz Aksu v Ruben Konings | 6-0,6-1 |
| ITF Turkey F29 | 2018/09/26 08:40 | Cengiz Aksu v Jordi Walder | 6-7,4-6 |
| Challenger Istanbul | 2018/09/08 08:30 | Vasko Mladenov v Cengiz Aksu | 7-5,2-6,6-3 |
| ITF Belarus F3 | 2018/08/22 07:00 | Cengiz Aksu v Giorgio Ricca | 3-6,6-3,3-6 |
| ITF Belarus F3 | 2018/08/21 08:15 | Roman Khassanov v Cengiz Aksu | 1-6,4-6 |
| ITF Belarus F2 | 2018/08/13 07:00 | Aliaksandr Bulitski v Cengiz Aksu | 6-2,6-7,6-2 |
| ITF Belarus F2 | 2018/08/12 07:00 | Cengiz Aksu v Martin Beran | 6-7,6-1,6-3 |
| ITF Turkey F31 | 2018/10/06 07:00 | Osmancan Soyler v Gokberk Ergeneman | 3-6,1-6 |
| ITF Turkey F30 | 2018/09/30 09:00 | Nicholas Horton v Osmancan Soyler | 6-1,6-2 |
| ITF Turkey F29 | 2018/09/23 09:30 | Osmancan Soyler v Maurizio Speziali | 3-6,1-6 |
| ITF Turkey F22 | 2018/06/03 07:30 | Osmancan Soyler v Oscar M Cornella | 4-6,0-6 |
| ITF Turkey F21 Qual | 2018/05/26 07:30 | Daniil Klimov v Osmancan Soyler | 6-1,6-3 |
| ITF Turkey F20 Qual | 2018/05/20 07:30 | Osmancan Soyler v Milos Nikolic | 2-6,1-6 |
| ITF Turkey F18 | 2018/05/09 07:30 | Osmancan Soyler v Mert Naci Turker | 3-6,1-6 |
| ITF Turkey F12 | 2018/03/25 07:00 | Mikhail Korovin v Osmancan Soyler | 6-0,6-1 |