| Thailand Open Qual | 2023/05/30 06:55 | Chia Hao Lee v Kai Schaefer | L | 2-1 |
| Malaysia Masters Qual | 2023/05/23 02:00 | Christian Adinata v Kai Schaefer | L | 2-0 |
| Sudirman Cup | 2023/05/15 02:20 | Kunlavut Vitidsarn v Kai Schaefer | L | 2-0 |
| Orleans Masters | 2023/04/05 12:40 | Lanxi Lei v Kai Schaefer | L | 2-0 |
| Spain Masters Qual | 2023/03/28 08:40 | Christian Adinata v Kai Schaefer | L | 2-0 |
| Polish Open | 2023/03/25 10:00 | Julien Carraggi v Kai Schaefer | L | 2-1 |
| Polish Open | 2023/03/24 13:30 | Danylo Bosniuk v Kai Schaefer | W | 0-2 |
| German Open Qual | 2023/03/07 10:45 | Magnus Johannesen v Kai Schaefer | L | 2-0 |
| Austrian Open Qual | 2023/05/25 08:00 | Gregoire Deschamp v Xiaodong Sheng | L | 1-2 |
| Luxembourg Open | 2023/05/05 12:00 | Krishna Adi Nugraha v Gregoire Deschamp | L | 2-0 |
| Luxembourg Open | 2023/05/05 10:00 | Aram Mahmoud v Gregoire Deschamp | W | 1-2 |
| Polish Open Qual | 2023/03/22 08:35 | Gregoire Deschamp v Victor Ording Kauffmann | L | 1-2 |
| Portugal Int. | 2023/03/10 14:00 | Gregoire Deschamp v Elias Bracke | L | 0-2 |
| Portugal Int. Qual | 2023/03/09 16:00 | Gregoire Deschamp v Nicolas A. Mueller | W | 2-0 |
| Portugal Int. Qual | 2023/03/08 15:10 | Gregoire Deschamp v Remi Rossi | W | 2-1 |
| Iceland Int. | 2023/01/28 17:20 | Mads Juel Moller v Gregoire Deschamp | L | 2-1 |