| Uganda Int. | 2023/02/25 07:00 | Zhen Yi Ong v Kai Schaefer | L | 2-1 |
| Uganda Int. | 2023/02/23 08:30 | Youcef Sabri Medel v Kai Schaefer | W | 0-2 |
| Campionatul European pe Echipe Mixte | 2023/02/16 15:00 | Kai Schaefer v Christo Popov | L | 0-2 |
| Campionatul European pe Echipe Mixte | 2023/02/14 15:00 | Kai Schaefer v Dimitar Yanakiev | W | 2-0 |
| Estonian Int. | 2023/01/13 10:20 | Jia Wei Joel Koh v Kai Schaefer | L | 2-1 |
| Dutch Open | 2022/10/13 11:55 | Ade Resky Dwicahyo v Kai Schaefer | L | 2-1 |
| Campionatul Mondial | 2022/08/23 03:00 | Jonatan Christie v Kai Schaefer | L | 2-0 |
| Campionatul Mondial | 2022/08/22 03:00 | Kantaphon Wangcharoen v Kai Schaefer | W | 0-2 |
| Welsh International - Calificari | 2022/11/29 14:50 | Raymond Webster v Dillon Chong | L | 0-2 |
| Irish Open | 2022/11/16 10:45 | Raymond Webster v Rakesh Sharma | L | 1-2 |
| Denmark Masters - Calificari | 2022/06/09 07:00 | Puritat Arree v Raymond Webster | L | 2-0 |
| Swedish Open - Calificari | 2022/01/20 10:10 | Raymond Webster v Archie Bult | L | 0-2 |
| Spain Masters - Calificari | 2020/02/18 09:35 | Oriol Altimira v Raymond Webster | L | 2-0 |
| Swedish Open - Calificari | 2020/01/16 10:45 | Alexander Rydstrom v Raymond Webster | L | 2-0 |
| Estonian Int. - Calificari | 2020/01/09 09:40 | Raymond Webster v Bruno Carvalho | L | 0-2 |
| Swiss Open - Dublu Feminin - Calificari | 2018/11/21 12:11 | Phone Pyae Naing v Raymond Webster | L | 2-0 |