Stadium: Court 3 Round: 25 Ground: Carpet indoor
| ITF Czech Republic F5 Qual | 2018/07/02 09:30 | Antonin Bolardt v Isa Mammetgulyyev | 4-6,6-4,3-6 |
| ITF Czech Republic F5 Qual | 2018/07/01 08:00 | Adam Blecha v Isa Mammetgulyyev | 6-7,6-3,3-6 |
| ITF Czech Republic F4 Qual | 2018/06/24 11:25 | Tomas Jirousek v Isa Mammetgulyyev | 4-6,6-1,6-3 |
| ITF Czech Republic F4 Qual | 2018/06/23 08:00 | Daniel Vrba v Isa Mammetgulyyev | 5-7,6-3,6-7 |
| ITF Hungary F4 Qual | 2018/06/10 11:00 | Isa Mammetgulyyev v George Botezan | 0-6,1-6 |
| ITF Hungary F4 Qual | 2018/06/09 11:00 | Nicholas Jovanovski v Isa Mammetgulyyev | 1-6,4-6 |
| ITF Czech Republic F3 Qual | 2018/05/26 08:00 | Isa Mammetgulyyev v Ondrej Styler | 1-6,2-6 |
| ITF Hungary F3 | 2018/05/23 10:10 | Isa Mammetgulyyev v Marko Tepavac | 2-6,3-6 |
| 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 |
| ITF Poland F2 | 2018/05/07 11:00 | David Poljak v Luca Gelhardt | 4-6,2-6 |