| Uganda Int. | 2023/02/24 11:00 | Zhen Yi Ong v Dmitriy Panarin | W | 2-1 |
| Uganda Int. | 2023/02/22 16:40 | Zhen Yi Ong v Rithvik Sanjeevi Satish Kumar | W | 2-0 |
| Uganda Int. | 2023/02/22 06:20 | Zhen Yi Ong v Saketh Upadhya | W | 2-0 |
| Estonian Int. | 2023/01/13 10:40 | Zhen Yi Ong v Alex Lanier | L | 0-2 |
| Estonian Int. - Kval | 2023/01/12 16:20 | Matthias Kicklitz v Zhen Yi Ong | W | 0-2 |
| Estonian Int. - Kval | 2023/01/12 11:20 | Zhen Yi Ong v Thomas Fourcade | W | 2-0 |
| Estonian Int. - Kval | 2023/01/12 10:30 | Zhen Yi Ong v Camilo Borst | W | 2-0 |
| Uganda Int. | 2023/02/23 08:30 | Youcef Sabri Medel v Kai Schaefer | W | 0-2 |
| Euro Mixed Team Champs | 2023/02/16 15:00 | Kai Schaefer v Christo Popov | L | 0-2 |
| Euro Mixed Team Champs | 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 |
| VM | 2022/08/23 03:00 | Jonatan Christie v Kai Schaefer | L | 2-0 |
| VM | 2022/08/22 03:00 | Kantaphon Wangcharoen v Kai Schaefer | W | 0-2 |
| Singapore Open - Kval | 2022/07/12 03:40 | Kai Schaefer v Hongyang Weng | L | 0-2 |