Stadium: Court 3 Round: 26 Ground: Carpet indoor
| ITF Czech Republic F1 | 2017/05/16 11:10 | Semjan, Marek v Matej Vocel | 3-6,3-6 |
| ITF Czech Republic F8 | 2017/11/01 13:55 | Semjan, Marek v Tchoutakian, Maxime | 5-7,6-4,6-2 |
| Czech Republic F8, Singles Qualifying | 2017/10/31 11:10 | Semjan, Marek v Osmakcic, Marko | 6-4,6-4 |
| Czech Republic F8, Singles Qualifying | 2017/10/30 11:00 | Semjan, Marek v Mrazek, David | 6-4,6-2 |
| ITF Czech Republic F7 | 2017/10/25 10:45 | Semjan, Marek v Stanek, Robin | 3-6,7-6,3-6 |
| ITF Czech Republic F7 Qual | 2017/10/24 10:30 | Semjan, Marek v Fekiac, Martin | 6-4,6-7,6-3 |
| ITF Czech Republic F7 Qual | 2017/10/23 11:30 | Semjan, Marek v Vachtl, Jiri | 7-6,6-2 |
| ITF Egypt F28 | 2017/10/02 14:00 | Perez Sanz, David v Semjan, Marek | 7-5,6-3 |
| ITF Egypt F28 | 2017/10/01 14:00 | Da Lio, Tristan v Semjan, Marek | 1-6,1-6 |
| ITF Czech Republic F8 | 2017/11/01 14:25 | Matej Vocel v Papik, Tomas | 6-3,6-4 |
| ITF Czech Republic F7 | 2017/10/27 10:05 | Matej Vocel v Lukas Klein | 7-5,3-6,6-7 |
| ITF Czech Republic F7 | 2017/10/26 12:05 | Nema, Patrik v Matej Vocel | 6-7,6-4,3-6 |
| ITF Czech Republic F7 | 2017/10/25 15:45 | Gawron, Marcin v Matej Vocel | 0-6,1-6 |
| France F19, Singles | 2017/09/13 08:00 | Matej Vocel v Joffrey De Schepper | 5-7,7-5,3-6 |
| ITF France F19 Qual | 2017/09/11 15:20 | Matej Vocel v Pontico, Hugo | 3-6,6-3,2-6 |
| ITF France F19 Qual | 2017/09/10 16:20 | Matej Vocel v Gueydan, Quentin | 6-1,6-0 |
| Challenger Liberec Qual | 2017/07/29 08:30 | Suc, Dominik v Matej Vocel | 7-5,3-6,6-3 |