| Challenger Ochsenhausen | 2018/03/22 10:50 | Jiri Vrablik v Jakub Kosowski | W | 3-2 |
| Challenger Ochsenhausen | 2018/01/19 13:05 | Jiri Vrablik v Jakub Kosowski | W | 3-1 |
| Challenger Ochsenhausen | 2018/01/18 08:10 | Jakub Kosowski v Jiri Vrablik | W | 1-3 |
| Challenger Ochsenhausen | 2018/01/05 14:00 | Jiri Vrablik v Jakub Kosowski | W | 3-1 |
| Challenger Ochsenhausen | 2018/01/04 08:10 | Jakub Kosowski v Jiri Vrablik | W | 2-3 |
| Challenger Ochsenhausen | 2017/12/20 09:30 | Jiri Vrablik v Jakub Kosowski | L | 1-3 |
| Challenger Ochsenhausen | 2016/09/19 09:01 | Jakub Kosowski v Jiri Vrablik | W | 2-3 |
| Challenger Ochsenhausen | 2018/03/23 10:10 | Jiri Vrablik v Florian Bluhm | W | 3-1 |
| Challenger Ochsenhausen | 2018/03/23 07:30 | Jiri Vrablik v Evgueni Chtchetinine | W | 3-1 |
| Challenger Ochsenhausen | 2018/03/22 10:50 | Jiri Vrablik v Jakub Kosowski | W | 3-2 |
| Challenger Ochsenhausen | 2018/03/22 08:10 | Michal Bankosz v Jiri Vrablik | W | 0-3 |
| Challenger Ochsenhausen | 2018/03/21 12:50 | Lucjan Blaszczyk v Jiri Vrablik | L | 3-2 |
| Challenger Ochsenhausen | 2018/03/21 10:50 | Jiri Vrablik v Josip Huzjak | W | 3-2 |
| Challenger Ochsenhausen | 2018/03/21 08:50 | Jiri Vrablik v Miroslav Horejsi | W | 3-0 |
| Qatar Open XD | 2018/02/25 17:05 | Jiri Vrablik v Antonin Gavlas | W | 3-2 |
| Challenger Ochsenhausen | 2018/03/23 09:30 | Evgueni Chtchetinine v Jakub Kosowski | W | 0-3 |
| Challenger Ochsenhausen | 2018/03/22 13:30 | Josip Huzjak v Jakub Kosowski | W | 2-3 |
| Challenger Ochsenhausen | 2018/03/22 10:50 | Jiri Vrablik v Jakub Kosowski | L | 3-2 |
| Challenger Ochsenhausen | 2018/03/22 08:50 | Miroslav Horejsi v Jakub Kosowski | W | 2-3 |
| Challenger Ochsenhausen | 2018/03/21 13:30 | Michal Bankosz v Jakub Kosowski | W | 1-3 |
| Challenger Ochsenhausen | 2018/03/21 12:10 | Florian Bluhm v Jakub Kosowski | W | 1-3 |
| Challenger Ochsenhausen | 2018/03/21 07:30 | Lucjan Blaszczyk v Jakub Kosowski | L | 3-1 |
| Challenger Ochsenhausen | 2018/03/20 13:35 | Lucjan Blaszczyk v Jakub Kosowski | L | 3-0 |