| Portugal International - Qualifikation | 2023/03/08 18:10 | Yohan Barbieri v Brian Holtschke | W | 0-2 |
| Iceland International | 2023/01/27 14:50 | Brian Holtschke v Valentin Singer | L | 1-2 |
| Estonian International - Qualifikation | 2023/01/12 14:00 | Christian Faust Kjaer v Brian Holtschke | L | 2-0 |
| Estonian International - Qualifikation | 2023/01/12 11:05 | Raul Must v Brian Holtschke | W | 0-2 |
| Estonian International - Qualifikation | 2023/01/12 08:35 | Rakesh Sharma v Brian Holtschke | W | 0-2 |
| Lettland - Latvia International | 2022/09/02 07:00 | Brian Holtschke v Christopher Vittoriani | L | 0-2 |
| Croatia Open | 2022/06/21 14:55 | Brian Holtschke v Dumindu Abeywickrama | L | 0-2 |
| Bonn Int. | 2022/06/16 13:45 | Joran Kweekel v Brian Holtschke | L | 2-1 |
| Polish Open - Qualifikation | 2023/03/22 08:35 | Jan Wilczak v Collins Valentine Filimon | W | 0-2 |
| Portugal International | 2023/03/11 15:00 | Enogat Roy v Collins Valentine Filimon | L | 2-0 |
| Portugal International | 2023/03/11 11:50 | Collins Valentine Filimon v Dominik Kwinta | W | 2-1 |
| Hungarian International | 2022/11/04 10:20 | Chun-Yi Lin v Collins Valentine Filimon | L | 2-0 |
| Hungarian International | 2022/11/03 14:40 | Collins Valentine Filimon v Louis Ducrot | W | 2-0 |
| Czech Open | 2022/10/21 07:40 | Collins Valentine Filimon v Julien Carraggi | L | 0-2 |
| Croatian International | 2022/10/01 10:00 | Wei Chi Liu v Collins Valentine Filimon | L | 2-0 |
| Croatian International | 2022/09/30 08:05 | Collins Valentine Filimon v Kevin Barkman | W | 2-0 |