| Swedish Open | 2022/01/22 15:40 | Seng Zoe Yeoh v Kai Schaefer | L | 2-0 |
| Swedish Open | 2022/01/22 09:40 | Rasmus Messerschmidt v Kai Schaefer | W | 1-2 |
| Swedish Open | 2022/01/21 16:30 | Jacob Nilsson v Kai Schaefer | W | 1-2 |
| Swedish Open | 2022/01/21 10:20 | Jeppe Bruun Christensen v Kai Schaefer | W | 0-2 |
| Mistrovství světa | 2021/12/15 12:00 | Kai Schaefer v Kantaphon Wangcharoen | L | 0-2 |
| Belgian International | 2021/10/28 08:30 | Ade Resky Dwicahyo v Kai Schaefer | L | 2-1 |
| Olympijské hry 2020 - muži | 2021/07/27 01:40 | Toby Penty v Kai Schaefer | L | 2-0 |
| Olympijské hry 2020 - muži | 2021/07/25 11:00 | Kantaphon Wangcharoen v Kai Schaefer | L | 2-0 |
| Ukraine Open | 2022/01/30 08:20 | Luka Wraber v Ken Yon Ong | L | 0-2 |
| Ukraine Open | 2022/01/29 15:40 | Luka Wraber v Giovanni Toti | W | 2-0 |
| Ukraine Open | 2022/01/29 09:40 | Oleksandar Shmundyak v Luka Wraber | W | 0-2 |
| Ukraine Open | 2022/01/28 12:40 | Glib Beketov v Luka Wraber | W | 0-2 |
| Mistrovství světa | 2021/12/15 09:40 | Luka Wraber v Kean Yew Loh | L | 0-2 |
| Scottish Open | 2021/11/25 20:50 | Priyanshu Rajawat v Luka Wraber | L | 2-0 |
| Hungarian International | 2021/11/04 11:20 | Luka Wraber v Seng Zoe Yeoh | L | 0-2 |
| Belgian International | 2021/10/28 08:10 | Luka Wraber v Subhankar Dey | L | 1-2 |