| Indonesia Masters | 2022/10/20 09:00 | Jun Hao Leong v Koki Watanabe | L | 2-1 |
| Indonesia Masters | 2022/10/19 10:00 | Kim, Donghun (1993) v Koki Watanabe | W | 0-2 |
| Taipei Open | 2022/07/21 07:20 | Koki Watanabe v Joo Ven Soong | L | 0-2 |
| Taipei Open | 2022/07/20 01:50 | Koki Watanabe v Lin, Yu Hsien | W | 2-0 |
| Singapore Open | 2022/07/14 05:20 | Li, S. F. v Koki Watanabe | L | 2-0 |
| Singapore Open | 2022/07/13 08:25 | Hans-Kristian Vittinghus v Koki Watanabe | W | 1-2 |
| Masters de Malaisie | 2022/07/06 07:50 | Koki Watanabe v Kento Momota | L | 0-2 |
| Open de Thaïlande | 2022/05/19 11:20 | Liew, Daren v Koki Watanabe | L | 2-1 |
| Hylo Open | 2022/11/01 14:50 | Thammasin, S. v Liew, Daren | L | 0-2 |
| Open de France | 2022/10/27 11:40 | Viktor Axelsen v Thammasin, S. | L | 2-0 |
| Open de France | 2022/10/26 08:00 | Shi, Y. Q. v Thammasin, S. | W | 0-2 |
| Denmark Open | 2022/10/18 07:00 | Kean Yew Loh v Thammasin, S. | L | 2-0 |
| Japan Open | 2022/08/30 03:00 | Lu, G. Z. v Thammasin, S. | L | 2-1 |
| World Championships | 2022/08/25 04:10 | Viktor Axelsen v Thammasin, S. | L | 2-0 |
| World Championships | 2022/08/23 01:00 | Thammasin, S. v Tze Yong Ng | W | 2-1 |
| World Championships | 2022/08/22 00:15 | Kanta Tsuneyama v Thammasin, S. | W | 1-2 |