Stadium: Court 3 Round: 26 Ground: Carpet indoor
| ITF Czech Republic F5 | 2018/07/03 10:00 | David Mrazek v Mikalai Haliak | 1-6,1-6 |
| ITF Tunisia F25 | 2018/06/28 12:20 | Nino Portales v Mikalai Haliak | 6-1,6-3 |
| ITF Tunisia F24 | 2018/06/19 09:00 | Mikalai Haliak v Juan Ignacio Galarza | 0-6,6-7 |
| ITF Poland F4 | 2018/05/24 10:20 | Dante Gennaro v Mikalai Haliak | 6-3,1-6,6-3 |
| ITF Poland F4 | 2018/05/22 08:45 | Marco Neubau 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 Jan Mertl | 7-5,6-4 |
| ITF Poland F2 | 2018/05/08 09:50 | Mikalai Haliak v Andrey Chepelev | 4-6,1-6 |
| ITF Czech Republic F5 | 2018/07/03 11:25 | Isa Mammetgulyyev v David Poljak | 0-6,4-6 |
| ITF Czech Republic F4 | 2018/06/25 10:00 | David Poljak v Marko Miladinovic | 6-4,1-6,2-6 |
| Challenger Poprad Tatry Qual | 2018/06/17 12:00 | Frank Dancevic v David Poljak | 6-4,1-6,6-4 |
| Challenger Poprad Tatry Qual | 2018/06/16 16:25 | Peter Goldsteiner v David Poljak | 0-6,7-6,4-6 |
| Challenger Prostejov Qual | 2018/06/03 14:20 | David Poljak v Evgeny Karlovskiy | 3-6,4-6 |
| Challenger Prostejov Qual | 2018/06/03 08:00 | David Poljak v Patrik Nema | 2-6,6-2,6-4 |
| ITF Poland F3 | 2018/05/18 10:00 | Marvin Netuschil v David Poljak | 6-1,6-0 |
| ITF Poland F3 | 2018/05/15 09:10 | Timur Kiyamov v David Poljak | 5-7,6-2,1-6 |