Stadium: Ustron 2 Round: 25 Ground: Clay
| ITF Czech Republic F1 | 2018/05/15 10:30 | Marek Semjan v Laurent Lokoli | 5-7,0-6 |
| ITF Czech Republic F1 | 2018/05/14 08:00 | Marek Semjan v Martin Bugaj | 6-1,6-2 |
| ITF Czech Republic F1 | 2018/05/13 08:00 | Marek Semjan v Michael Paty | 6-1,6-1 |
| ITF Kazakhstan F4 Qual | 2018/04/15 09:30 | Marek Semjan v Aleksandre Metreveli | 4-6,6-7 |
| ITF Kazakhstan F3 | 2018/04/10 10:00 | Ivan Gakhov v Marek Semjan | 6-2,6-4 |
| ITF Kazakhstan F3 Qual | 2018/04/09 04:00 | Marek Semjan v Ivan Kalinin | 6-4,6-2 |
| ITF Kazakhstan F3 Qual | 2018/04/08 12:25 | Marek Semjan v Igor Timoshenko | 6-3,6-3 |
| ITF Qatar F3 Qual | 2018/03/11 16:05 | Marek Semjan v Palaphoom Kovapitukted | 6-1,6-1 |
| ITF Poland F3 | 2018/05/15 07:30 | Marvin Netuschil v Michal Mikula | 6-1,7-5 |
| ITF Poland F3 Qual | 2018/05/14 07:30 | Michal Mikula v Ramy Labna | 7-6,6-3 |
| ITF Poland F3 | 2018/05/13 07:00 | Michal Mikula v Ilari Vesanen | 6-1,6-1 |
| ITF Poland F6 Qual | 2017/07/17 11:30 | Michal Mikula v Dominik Nazaruk | 7-5,4-6,4-6 |
| ITF Poland F6 Qual | 2017/07/16 10:30 | Michal Mikula v Daniil Tsebrenko | 6-2,6-1 |
| ITF Poland F5 Qual | 2017/07/10 09:40 | Farzin Danny Amiri v Michal Mikula | 6-4,6-2 |
| ITF Poland F5 Qual | 2017/07/09 08:00 | Tomislav E Papac v Michal Mikula | 2-6,2-6 |
| ITF Poland F5 Qual | 2017/07/08 07:00 | Davide Innocenti v Michal Mikula | 3-6,2-6 |