| Giraldilla Int. XD | 2018/09/22 12:00 | Messerschmidt, Rasmus v Kai Schaefer | L | 0-2 |
| Open de Suède | 2022/01/21 12:00 | Gustav Bjorkler v Messerschmidt, Rasmus | W | 1-2 |
| Open de Suède | 2022/01/21 10:20 | Panitchaphon Teeraratsakul v Messerschmidt, Rasmus | W | 1-2 |
| Scottish Open | 2021/11/26 17:40 | Messerschmidt, Rasmus v Toby Penty | L | 0-2 |
| Scottish Open | 2021/11/25 21:30 | Karunaratna, D. v Messerschmidt, Rasmus | W | 0-2 |
| Scottish Open Qual | 2021/11/25 14:50 | Messerschmidt, Rasmus v Alex Lanier | W | 2-1 |
| Scottish Open Qual | 2021/11/25 11:55 | Messerschmidt, Rasmus v Enogat Roy | W | 2-0 |
| Dutch Open | 2021/10/14 08:20 | Jan Louda v Messerschmidt, Rasmus | L | 2-0 |
| Polish Int. | 2021/09/24 10:20 | Jan Louda v Messerschmidt, Rasmus | L | 2-1 |
| Open de Suède | 2022/01/21 16:30 | Nilsson, Jacob v Kai Schaefer | W | 1-2 |
| Open de Suède | 2022/01/21 10:20 | Christensen, Jeppe Bruun v Kai Schaefer | W | 0-2 |
| World Championships | 2021/12/15 12:00 | Kai Schaefer v Kantaphon Wangcharoen | L | 0-2 |
| Belgian International 2019, MS | 2021/10/28 08:30 | Ade Resky Dwicahyo v Kai Schaefer | L | 2-1 |
| Olympics 2020 - Men | 2021/07/27 01:40 | Toby Penty v Kai Schaefer | L | 2-0 |
| Olympics 2020 - Men | 2021/07/25 11:00 | Kantaphon Wangcharoen v Kai Schaefer | L | 2-0 |
| Spain Int | 2021/06/17 15:00 | Ivan Rusev v Kai Schaefer | L | 2-0 |
| Masters d'Espagne | 2021/05/19 11:20 | Kai Schaefer v Lucas Claerbout | L | 1-2 |