Stadium: Court 4 Round: 25 Ground: Clay
| ITF Qatar F4 | 2017/12/06 12:00 | Marek Semjan v Antoine Escoffier | 2-6,3-6 |
| ITF Qatar F4 | 2017/12/05 12:00 | Hamad Almohannadi v Marek Semjan | 1-6,0-6 |
| ITF Qatar F4 Qual | 2017/12/04 12:00 | Fran Zvonimir Zgombic v Marek Semjan | 2-6,6-1,3-6 |
| ITF Qatar F4 Qual | 2017/12/03 15:05 | Martin Nygaard v Marek Semjan | 2-6,2-6 |
| ITF Czech Republic F11 | 2017/11/22 11:35 | Dominik Kellovsky v Marek Semjan | 6-3,7-6 |
| ITF Czech Republic F11 Qual | 2017/11/19 13:00 | Marek Semjan v Nenad Vladusic | 6-3,7-6 |
| ITF Czech Republic F10 | 2017/11/13 11:30 | Tomas Machac v Marek Semjan | 6-4,6-3 |
| Challenger Bratislava Qual | 2017/11/04 10:20 | Franko Skugor v Marek Semjan | 6-2,6-1 |
| ITF Switzerland F2 | 2018/02/13 10:10 | Michael Vrbensky v Lukas Klein | 3-6,2-6 |
| ITF Switzerland F2 Qual | 2018/02/11 15:05 | Michael Vrbensky v Robin Lang | 6-0,3-6,6-2 |
| ITF Switzerland F1 Qual | 2018/02/05 09:00 | Michael Vrbensky v Valentin Guenther | 4-6,5-7 |
| ITF Switzerland F1 Qual | 2018/02/04 09:00 | Michael Vrbensky v Yanik Kaelin | 7-5,6-1 |
| Czechia Extraliga | 2017/12/18 09:00 | Vaclav Safranek v Michael Vrbensky | 4-6,6-2,6-3 |
| Czechia Extraliga | 2017/12/17 10:50 | Mats Moraing v Michael Vrbensky | 6-2,6-4 |
| Czechia Extraliga | 2017/12/15 10:02 | Michael Vrbensky v Stepan Vancurik | 6-1,5-3 |
| ITF Czech Republic F12 | 2017/12/01 09:00 | Michael Vrbensky v Constant Lestienne | 5-7,2-6 |