| Osaka Int. | 2019/04/07 02:00 | Takuma Obayashi v Koki Watanabe | W | 1-2 |
| Masters de Corea del Sur | 2023/11/08 04:35 | Koki Watanabe v Alwi Farhan | W | 2-1 |
| Open de Francia | 2023/10/25 14:15 | Koki Watanabe v Tien Chen Chou | L | 1-2 |
| Open de Dinamarca | 2023/10/19 14:10 | Koki Watanabe v Cheuk Yiu Lee | L | 1-2 |
| Open de Dinamarca | 2023/10/18 19:25 | Misha Zilberman v Koki Watanabe | W | 1-2 |
| Open del Ártico | 2023/10/13 17:50 | Anders Antonsen v Koki Watanabe | L | 2-1 |
| Open del Ártico | 2023/10/12 17:00 | Nhat Nguyen v Koki Watanabe | W | 0-2 |
| Open del Ártico | 2023/10/11 12:20 | Tzu Wei Wang v Koki Watanabe | W | 1-2 |
| Open de Vietnam | 2023/09/15 08:30 | Koki Watanabe v Yu Kai Huang | L | 0-2 |
| Masters de Corea del Sur | 2023/11/08 06:55 | Yu Kai Huang v Takuma Obayashi | W | 0-2 |
| Masters de Indonesia | 2023/10/29 05:50 | Ji Hoon Choi v Takuma Obayashi | W | 0-2 |
| Masters de Indonesia | 2023/10/28 08:20 | Yu Jen Chi v Takuma Obayashi | W | 1-2 |
| Masters de Indonesia | 2023/10/27 09:05 | Koo Takahashi v Takuma Obayashi | W | 1-2 |
| Masters de Indonesia | 2023/10/26 11:25 | Joo Ven Soong v Takuma Obayashi | W | 1-2 |
| Masters de Indonesia | 2023/10/25 11:25 | Ikhsan L I Rumbay v Takuma Obayashi | W | 1-2 |
| Kaohsiung - Masters | 2023/09/28 07:30 | S.K. Karunakaran v Takuma Obayashi | L | 2-0 |
| Kaohsiung - Masters | 2023/09/27 09:25 | Chi Ting Chen v Takuma Obayashi | W | 1-2 |