Round: 54 Ground: Hardcourt indoor
| ITF Czech Republic F8 Qual | 2017/10/30 11:00 | Marek Semjan v David Mrazek | 6-4,6-2 |
| ITF Czech Republic F7 | 2017/10/25 10:45 | Marek Semjan v Robin Stanek | 3-6,7-6,3-6 |
| ITF Czech Republic F7 Qual | 2017/10/24 10:30 | Marek Semjan v Martin Fekiac | 6-4,6-7,6-3 |
| ITF Czech Republic F7 Qual | 2017/10/23 11:30 | Marek Semjan v Jiri Vachtl | 7-6,6-2 |
| ITF Egypt F28 | 2017/10/02 14:00 | David Perez Sanz v Marek Semjan | 7-5,6-3 |
| ITF Egypt F28 | 2017/10/01 14:00 | Tristan Da Lio v Marek Semjan | 1-6,1-6 |
| ITF Hungary F6 | 2017/08/22 10:00 | Marek Semjan v Lukas Klein | 2-6,4-6 |
| ITF Slovakia F3 | 2017/08/09 09:40 | Samuel Bensoussan v Marek Semjan | 7-5,2-6,7-6 |
| ITF Czech Republic F8 Qual | 2017/10/30 14:00 | Leonard Von Hindte v Marko Osmakcic | 3-6,3-6 |
| ITF Turkey F34 | 2017/09/12 10:30 | Antonio Massara v Marko Osmakcic | 6-3,6-0 |
| ITF Turkey F34 | 2017/09/11 10:00 | Marko Osmakcic v Philip Bachmaier | 4-6,6-3,6-1 |
| ITF Turkey F34 | 2017/09/10 10:30 | Marko Osmakcic v Bastien Kolly | 6-1,6-1 |
| ITF Macedonia F2 | 2017/07/31 08:00 | Marko Osmakcic v Rajko Mladenovic | 6-3,0-6,0-6 |
| ITF Macedonia F1 Qual | 2017/07/24 08:00 | Marko Osmakcic v Stefan Latinov | 1-6,0-6 |
| ITF Macedonia F1 Qual | 2017/07/23 08:00 | Marko Osmakcic v Venci Ivanov | 6-3,6-1 |
| ITF Bosnia and Herzegovina F2 Qual | 2017/05/28 13:30 | Igor Banicevic v Marko Osmakcic | 1-6,0-6 |