Stadium: Court 3 Round: 25 Ground: Clay
| ITF Turkey F40 | 2018/12/08 06:00 | Kaya Arinc v Horst Rieder | 4-6,1-6 |
| ITF Turkey F39 | 2018/12/02 06:30 | Matyas Fuele v Kaya Arinc | 6-4,6-4 |
| ITF Tunisia F39 | 2018/11/03 10:30 | Vitalii Shcherba v Kaya Arinc | 6-2,6-2 |
| ITF Tunisia F38 | 2018/10/29 08:30 | Geoffrey Blancaneaux v Kaya Arinc | 6-0,6-0 |
| Challenger Barcelona | 2018/10/07 07:15 | Kaya Arinc v Tak Khunn Wang | 1-6,0-6 |
| ITF Tunisia F32 | 2018/09/15 08:30 | Kaya Arinc v Ashwin R Sharma | 0-6,1-6 |
| ITF Tunisia F31 | 2018/09/09 10:30 | Ameur Ben Hassen v Kaya Arinc | 6-4,7-5 |
| ITF Spain F16 Qual | 2018/06/23 19:00 | Andre Ku Meza v Kaya Arinc | 3-6,7-6,6-3 |
| ITF Turkey F40 | 2018/12/14 07:00 | Maciej Rajski v Dragos Nicolae Madaras | 6-4,4-6,4-6 |
| ITF Turkey F40 | 2018/12/11 08:35 | Dan Alexandru Tomescu v Maciej Rajski | 4-6,5-7 |
| ITF Turkey F39 | 2018/12/04 06:30 | Maciej Rajski v Pavel Kotov | 4-6,3-6 |
| ITF Turkey F38 | 2018/12/01 07:25 | Maciej Rajski v Ronald Slobodchikov | 6-7,1-6 |
| ITF Turkey F38 | 2018/11/25 09:00 | Maciej Rajski v Cihan Akay | 6-0,6-1 |
| ITF Czech Republic F9 | 2018/11/10 10:00 | Maciej Rajski v Karol Drzewiecki | 6-4,4-6,4-6 |
| ITF Czech Republic F9 | 2018/11/09 09:00 | Ondrej Krstev v Maciej Rajski | 3-6,4-6 |
| ITF Czech Republic F9 | 2018/11/08 14:25 | Tomas Jirousek v Maciej Rajski | 6-4,4-6,2-6 |