| Challenger de Ochsenhausen | 2018/03/19 17:00 | Valerij Rakov v Jakub Kosowski | W | 1-3 |
| Challenger de Ochsenhausen | 2017/09/07 10:20 | Jakub Kosowski v Valerij Rakov | W | 3-0 |
| Challenger de Ochsenhausen | 2017/01/23 12:02 | Valerij Rakov v Jakub Kosowski | W | 1-3 |
| Challenger de Ochsenhausen | 2018/04/16 09:10 | Jakub Kosowski v Ricardo Jimenez | W | 3-1 |
| Challenger de Ochsenhausen | 2018/04/16 06:30 | Jakub Kosowski v Tomasz Tomaszuk | W | 3-1 |
| Challenger de Ochsenhausen | 2018/03/23 13:05 | Jiri Vrablik v Jakub Kosowski | L | 3-1 |
| Challenger de Ochsenhausen | 2018/03/23 09:30 | Evgueni Chtchetinine v Jakub Kosowski | W | 0-3 |
| Challenger de Ochsenhausen | 2018/03/22 13:30 | Josip Huzjak v Jakub Kosowski | W | 2-3 |
| Challenger de Ochsenhausen | 2018/03/22 10:50 | Jiri Vrablik v Jakub Kosowski | L | 3-2 |
| Challenger de Ochsenhausen | 2018/03/22 08:50 | Miroslav Horejsi v Jakub Kosowski | W | 2-3 |
| Challenger de Ochsenhausen | 2018/03/21 13:30 | Michal Bankosz v Jakub Kosowski | W | 1-3 |
| Challenger de Ochsenhausen | 2018/04/16 09:50 | Valerij Rakov v Luan Bruno | W | 3-0 |
| Challenger de Ochsenhausen | 2018/04/16 07:50 | Valerij Rakov v Remi Menand | L | 0-3 |
| Challenger de Ochsenhausen | 2018/03/27 10:20 | Yannick Vostes v Valerij Rakov | L | 3-1 |
| Challenger de Ochsenhausen | 2018/03/27 08:20 | Valerij Rakov v Miroslav Horejsi | L | 0-3 |
| Challenger de Ochsenhausen | 2018/03/26 20:00 | Daniel Kriston v Valerij Rakov | L | 3-1 |
| Challenger de Ochsenhausen | 2018/03/26 17:20 | Antonin Gavlas v Valerij Rakov | L | 3-1 |
| Challenger de Ochsenhausen | 2018/03/26 14:40 | Valerij Rakov v Adam Szudi | L | 2-3 |
| Challenger de Ochsenhausen | 2018/03/26 10:30 | Valerij Rakov v Sven Happek | L | 2-3 |