Round: 44 Ground: Hardcourt outdoor
| ITF Qatar F4 Qual | 2017/12/02 09:45 | Aljufairi, Rayyan v Nygaard Knudsen, Martin | 3-6,3-6 |
| Czech Republic F11, Singles | 2017/11/22 11:35 | Dominik Kellovsky v Semjan, Marek | 6-3,7-6 |
| Czech Republic F11, Singles Qualifying | 2017/11/19 13:00 | Semjan, Marek v Vladusic, Nenad | 6-3,7-6 |
| ITF Czech Republic F10 | 2017/11/13 11:30 | Tomas Machac v Semjan, Marek | 6-4,6-3 |
| Challenger Bratislava Qual | 2017/11/04 10:20 | Skugor, Franko v Semjan, Marek | 6-2,6-1 |
| ITF Czech Republic F8 | 2017/11/02 10:20 | Semjan, Marek v Matej Vocel | 4-6,6-7 |
| 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 |