| Challenger - Ochsenhausen | 2019/11/07 11:30 | Jakub Kosowski v Sven Happek | W | 3-0 |
| Challenger - Ochsenhausen | 2019/07/15 09:50 | Jakub Kosowski v Sven Happek | W | 3-0 |
| Challenger - Ochsenhausen | 2019/03/14 09:30 | Jakub Kosowski v Sven Happek | L | 1-3 |
| Challenger - Ochsenhausen | 2018/11/21 12:50 | Jakub Kosowski v Sven Happek | W | 3-0 |
| Challenger - Ochsenhausen | 2018/04/16 18:40 | Jakub Kosowski v Sven Happek | W | 3-1 |
| Challenger - Ochsenhausen | 2018/01/18 11:30 | Jakub Kosowski v Sven Happek | W | 3-0 |
| Challenger - Ochsenhausen | 2020/07/13 06:30 | Jakub Kosowski v Jakub Folwarski | W | 3-0 |
| Challenger - Ochsenhausen | 2020/02/18 14:15 | Jiri Vrablik v Jakub Kosowski | L | 3-1 |
| Challenger - Ochsenhausen | 2020/02/18 12:40 | Jakub Kosowski v Francisco Sanchi | W | 3-1 |
| Challenger - Ochsenhausen | 2020/02/18 10:00 | Jakub Kosowski v Viktor Brodd | L | 2-3 |
| Challenger - Ochsenhausen | 2020/02/17 21:00 | Jakub Kosowski v Irvin Bertrand | L | 2-3 |
| Challenger - Ochsenhausen | 2020/02/17 16:20 | Jakub Kosowski v Jiri Vrablik | L | 2-3 |
| Challenger - Ochsenhausen | 2020/02/17 13:30 | Jakub Kosowski v Florian Bluhm | W | 3-1 |
| Challenger - Ochsenhausen | 2020/02/17 10:10 | Liang Qiu v Jakub Kosowski | W | 0-3 |
| Challenger - Ochsenhausen | 2020/07/13 07:10 | Sven Happek v Daniel Gorak | L | 1-3 |
| Challenger - Ochsenhausen | 2020/07/07 09:40 | Valerij Rakov v Sven Happek | W | 2-3 |
| Challenger - Ochsenhausen | 2020/07/07 08:20 | Dauud Cheaib v Sven Happek | L | 3-0 |
| Challenger - Ochsenhausen | 2020/07/06 18:00 | Petr David v Sven Happek | L | 3-0 |
| Challenger - Ochsenhausen | 2020/07/06 16:00 | Miroslav Horejsi v Sven Happek | L | 3-0 |
| Challenger - Ochsenhausen | 2020/07/06 12:30 | Mathieu De Saintilan v Sven Happek | L | 3-2 |
| Challenger - Ochsenhausen | 2020/07/06 11:10 | Elia Schmid v Sven Happek | L | 3-0 |
| Challenger - Ochsenhausen | 2020/07/06 06:30 | Dwain Schwarzer v Sven Happek | W | 1-3 |