Round: 26 Ground: Clay
| ITF Georgia F1 | 2018/07/10 08:05 | Dembek, Michal v Ratniuk, Maxim | 2-6,1-6 |
| ITF Poland F3 | 2018/05/15 07:30 | Ratniuk, Maxim v David Pichler | 2-6,3-6 |
| ITF Poland F2 | 2018/05/13 08:00 | Ratniuk, Maxim v Podzus, Martins | 3-6,1-6 |
| ITF Poland F2 | 2018/05/11 09:30 | Gray, Jonathan v Ratniuk, Maxim | 0-6,1-6 |
| ITF Poland F2 | 2018/05/08 08:00 | Ratniuk, Maxim v Manole, Alexandru Vasile | 7-6,6-1 |
| Turkey F15, Singles Qualifying | 2018/04/16 07:30 | Ratniuk, Maxim v Taylor, Sam | 6-4,6-7,1-6 |
| Turkey F15, Singles Qualifying | 2018/04/14 07:30 | Ratniuk, Maxim v Sami Ben Abdennibi | 6-0,6-1 |
| Turkey F14, Singles Qualifying | 2018/04/10 07:30 | Genaro Alberto Olivieri v Ratniuk, Maxim | 7-6,6-3 |
| ITF Georgia F1 | 2018/07/11 08:20 | Mikalai Haliak v Kiyamov, Timur | 6-2,6-2 |
| ITF Czech Republic F5 | 2018/07/03 10:00 | Mrazek, David v Mikalai Haliak | 1-6,1-6 |
| ITF Tunisia F25 | 2018/06/28 12:20 | Portales, Nino v Mikalai Haliak | 6-1,6-3 |
| ITF Tunisia F24 | 2018/06/19 09:00 | Mikalai Haliak v Galarza, Juan Ignacio | 0-6,6-7 |
| ITF Poland F4 | 2018/05/24 10:20 | Gennaro, Dante v Mikalai Haliak | 6-3,1-6,6-3 |
| ITF Poland F4 | 2018/05/22 08:45 | Neubau, Marco v Mikalai Haliak | 3-6,6-4,3-6 |
| ITF Czech Republic F1 | 2018/05/17 08:00 | Peter Heller v Mikalai Haliak | 6-2,6-4 |
| ITF Czech Republic F1 | 2018/05/16 08:00 | Mikalai Haliak v Mertl, Jan | 7-5,6-4 |