Stadium: Court 2 Round: 26 Ground: Clay
| ITF Germany F14 | 2018/10/04 12:40 | Petr Nouza v Semjan, Marek | 6-7,6-0,4-6 |
| ITF Czech Republic F10 | 2016/11/20 09:00 | Semjan, Marek v Petr Nouza | 6-1,6-7,6-7 |
| Piestany, Singles M-ITF-SVK-02A | 2019/07/17 10:30 | Semjan, Marek v Zdenek Derkas | 6-3,7-6 |
| ITF M15 Telfs | 2019/07/10 08:00 | Semjan, Marek v Hampel, Lenny | 1-6,3-6 |
| Balatonalmadi, Singles Qualifying M-ITF-HUN-02A | 2019/06/19 09:50 | Borsos, Gabor v Semjan, Marek | 6-3,6-3 |
| Balatonalmadi, Singles Qualifying M-ITF-HUN-02A | 2019/06/18 08:00 | Joao Lucas Reis da Silva v Semjan, Marek | 3-6,4-6 |
| Balatonalmadi, Singles Qualifying M-ITF-HUN-02A | 2019/06/17 09:00 | Matthew Dellavedova v Semjan, Marek | 5-7,1-6 |
| Gyula, Singles M-ITF-HUN-01A | 2019/05/30 08:00 | Semjan, Marek v Ornago, Fabrizio | 2-6,3-6 |
| Gyula, Singles M-ITF-HUN-01A | 2019/05/29 09:00 | Martins Rocens v Semjan, Marek | 6-7,1-6 |
| ITF - M15 Brcko | 2019/05/22 07:00 | Semjan, Marek v Gonzalo Villanueva | 3-6,3-6 |
| Piestany, Singles M-ITF-SVK-02A | 2019/07/17 08:00 | Liska, Tomas v Petr Nouza | 3-6,4-6 |
| ITF M15 Telfs | 2019/07/13 13:20 | Ehrat, Sandro v Petr Nouza | 4-6,6-2,6-1 |
| ITF M15 Telfs | 2019/07/12 14:15 | Petr Nouza v Veldheer, Mick | 6-4,6-4 |
| ITF M15 Telfs | 2019/07/11 09:30 | Boehler, Dominik v Petr Nouza | 6-7,4-6 |
| ITF M15 Telfs | 2019/07/10 12:00 | Damien Wenger v Petr Nouza | 3-6,5-7 |
| ITF M15 Wroclaw | 2019/07/07 10:00 | Safranek, Vaclav v Petr Nouza | 6-3,3-6,6-3 |
| ITF M15 Wroclaw | 2019/07/06 10:00 | Petr Nouza v Alexey Zakharov | 6-2,4-6,7-6 |
| ITF M15 Wroclaw | 2019/07/05 10:00 | Petr Nouza v Dembek, Michal | 1-6,7-6,6-2 |