| Challenger - Ochsenhausen | 2020/09/22 11:00 | Niagol Stoyanov v Jakub Kosowski | L | 2-3 |
| Challenger - Ochsenhausen | 2018/12/04 14:15 | Jakub Kosowski v Niagol Stoyanov | W | 0-3 |
| Challenger - Ochsenhausen | 2018/12/03 18:20 | Jakub Kosowski v Niagol Stoyanov | W | 2-3 |
| Challenger - Ochsenhausen | 2018/01/05 13:05 | Niagol Stoyanov v Jakub Kosowski | L | 1-3 |
| Challenger - Ochsenhausen | 2018/01/03 08:10 | Jakub Kosowski v Niagol Stoyanov | W | 2-3 |