Stadium: Loosova C4 Round: 62 Ground: Clay
| ITF Bosnia and Herzegovina F3 | 2018/05/31 15:00 | Marek Semjan v Gustav Hansson | 4-6,1-6 |
| ITF Bosnia and Herzegovina F3 | 2018/05/30 09:00 | Marek Semjan v Milos Nikolic | 6-3,6-1 |
| ITF Poland F4 | 2018/05/24 08:00 | Pawel Juszczak v Marek Semjan | 3-6,6-3,6-1 |
| ITF Poland F4 | 2018/05/21 09:00 | Marek Semjan v Michal Mikula | 7-5,6-3 |
| 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 Czech Republic F11 Qual | 2017/11/19 15:00 | Dan Added v Stepan Holis | 6-4,6-4 |
| ITF Czech Republic F8 Qual | 2017/10/30 09:00 | Stepan Holis v Levente Godry | 0-6,4-6 |
| ITF Slovakia F2 | 2017/07/31 07:00 | Vitaliy Sachko v Stepan Holis | 6-1,6-0 |
| ITF Slovakia F2 | 2017/07/30 09:00 | David Mrazek v Stepan Holis | 6-2,6-7,1-6 |
| ITF Czech Republic F6 Qual | 2017/07/15 07:00 | Stepan Holis v Tomas Liska | 4-6,7-6,3-6 |
| ITF Czech Republic F5 Qual | 2017/07/09 10:55 | Stepan Holis v Petr Nouza | 6-3,3-6,2-6 |
| ITF Czech Republic F4 Qual | 2017/07/02 09:00 | Jonathan Mridha v Stepan Holis | 6-0,6-3 |
| ITF Slovakia F2 | 2016/08/01 07:00 | Petr Michnev v Stepan Holis | 6-0,6-0 |