| Nantes Int. Qual | 2022/06/23 07:40 | Jia Wei Joel Koh v Fabian Roth | L | 0-2 |
| Denmark Masters Qual | 2022/06/09 12:00 | Jia Wei Joel Koh v Hyeok Jin Jeon | L | 1-2 |
| Italian Int. Qual | 2022/06/02 13:05 | Jia Wei Joel Koh v Yeoh, Seng Zoe | L | 0-2 |
| Italian Int. Qual | 2022/06/02 07:10 | Mekala, Kiran Kumar v Jia Wei Joel Koh | W | 0-2 |
| Thomas Cup | 2022/05/11 08:20 | Panitchaphon Teeraratsakul v Jia Wei Joel Koh | L | 2-1 |
| Thomas Cup | 2022/05/09 13:20 | Yun Gyu Lee v Jia Wei Joel Koh | W | 1-2 |
| Thomas Cup | 2022/05/08 08:20 | Shesar Hiren Rhustavito v Jia Wei Joel Koh | L | 2-0 |
| Dutch Int. - | 2022/04/14 11:20 | Jia Wei Joel Koh v Magnus Johannesen | L | 1-2 |
| Dutch Open | 2022/10/13 11:55 | Ade Resky Dwicahyo v Kai Schaefer | L | 2-1 |
| World Championships | 2022/08/23 03:00 | Jonatan Christie v Kai Schaefer | L | 2-0 |
| World Championships | 2022/08/22 03:00 | Kantaphon Wangcharoen v Kai Schaefer | W | 0-2 |
| Singapore Open 2019, MS, Qualification | 2022/07/12 03:40 | Kai Schaefer v Weng, H. Y. | L | 0-2 |
| Singapore Open 2019, MS, Qualification | 2022/07/12 01:20 | Kai Schaefer v Kalle Koljonen | W | 2-0 |
| Masters de Malaisie - Qualif. | 2022/07/05 02:00 | Weng, H. Y. v Kai Schaefer | L | 2-0 |
| Nantes Int. | 2022/06/24 07:00 | Yeoh, Seng Zoe v Kai Schaefer | L | 2-0 |
| Open de Thaïlande | 2022/05/19 07:40 | Kai Schaefer v Zii Jia Lee | L | 0-2 |