| Challenger - Ochsenhausen | 2018/06/06 08:30 | Jakub Kosowski v Jakub Folwarski | W | 3-0 |
| Challenger - Ochsenhausen | 2018/06/04 07:10 | Jakub Kosowski v Jakub Folwarski | W | 3-0 |
| Challenger - Ochsenhausen | 2018/05/30 06:30 | Jakub Folwarski v Jakub Kosowski | W | 1-3 |
| Challenger - Ochsenhausen | 2017/09/06 09:50 | Jakub Kosowski v Jakub Folwarski | L | 2-3 |
| Challenger - Ochsenhausen | 2017/08/09 07:10 | Jakub Kosowski v Jakub Folwarski | W | 3-1 |
| Challenger - Ochsenhausen | 2017/04/17 07:50 | Jakub Kosowski v Jakub Folwarski | W | 3-0 |
| Challenger - Ochsenhausen | 2016/12/12 10:06 | Jakub Kosowski v Jakub Folwarski | L | 1-3 |
| Challenger - Ochsenhausen | 2018/10/22 09:10 | Tomasz Tomaszuk v Jakub Kosowski | W | 0-3 |
| Challenger - Ochsenhausen | 2018/10/22 07:10 | Jakub Kosowski v Florian Bluhm | W | 3-0 |
| Challenger - Ochsenhausen | 2018/08/03 12:50 | Miroslav Horejsi v Jakub Kosowski | W | 1-3 |
| Challenger - Ochsenhausen | 2018/08/03 12:05 | Jakub Kosowski v Fedor Kuzmin | W | 3-2 |
| Challenger - Ochsenhausen | 2018/08/03 09:50 | Jakub Kosowski v Miroslav Horejsi | L | 0-3 |
| Challenger - Ochsenhausen | 2018/08/03 07:10 | Jakub Kosowski v Evgueni Chtchetinine | W | 3-2 |
| Challenger - Ochsenhausen | 2018/08/02 10:30 | Jakub Kosowski v Josip Huzjak | W | 3-2 |
| Challenger - Ochsenhausen | 2018/08/02 07:10 | Jakub Kosowski v Fedor Kuzmin | W | 3-1 |
| Challenger - Ochsenhausen | 2018/10/22 11:10 | Petr David v Jakub Folwarski | W | 1-3 |
| Challenger - Ochsenhausen | 2018/10/22 06:30 | Tomasz Tomaszuk v Jakub Folwarski | L | 3-2 |
| Challenger - Ochsenhausen | 2018/06/08 09:10 | Valerij Rakov v Jakub Folwarski | L | 3-0 |
| Challenger - Ochsenhausen | 2018/06/08 07:10 | Adam Szudi v Jakub Folwarski | L | 3-2 |
| Challenger - Ochsenhausen | 2018/06/07 11:50 | Jakub Kleprlik v Jakub Folwarski | L | 3-0 |
| Challenger - Ochsenhausen | 2018/06/07 09:10 | Jakub Folwarski v Daniel Kiss | W | 3-0 |
| Challenger - Ochsenhausen | 2018/06/07 06:30 | Jakub Folwarski v Evgueni Chtchetinine | L | 0-3 |
| Challenger - Ochsenhausen | 2018/06/06 11:10 | Jakub Folwarski v Dmitrij Prokopcov | L | 0-3 |