| Indonesia Masters | 2023/09/07 03:00 | Koki Watanabe v Sholeh Aidil | L | 0-2 |
| Indonesia Masters | 2023/09/06 09:35 | Koki Watanabe v Kuan Lin Kuo | W | 2-0 |
| Japan Open | 2023/07/28 04:25 | Koki Watanabe v Lakshya Sen | L | 0-2 |
| Japan Open | 2023/07/27 03:50 | Koki Watanabe v Tze Yong Ng | W | 2-0 |
| Japan Open | 2023/07/26 05:30 | Kento Momota v Koki Watanabe | W | 1-2 |
| Korea Open | 2023/07/20 07:05 | Koki Watanabe v Kenta Nishimoto | L | 0-2 |
| Korea Open | 2023/07/19 08:10 | Chico Aura Dwi Wardoyo v Koki Watanabe | W | 1-2 |
| Canada Open | 2023/07/07 21:20 | Koki Watanabe v Shifeng Li | L | 1-2 |
| Vietnam Open | 2023/09/13 01:30 | Keisuke Fujiwara v Donghun Kim | W | 2-1 |
| Vietnam Open Qual | 2023/09/12 07:30 | Adisak Prasertphetmanee v Keisuke Fujiwara | W | 0-2 |
| Vietnam Open Qual | 2023/09/12 02:50 | Keisuke Fujiwara v Dumindu Abeywickrama | W | 2-0 |
| Dutch Int. | 2023/04/14 14:40 | Fabian Roth v Keisuke Fujiwara | L | 2-0 |
| Dutch Int. | 2023/04/14 11:05 | Keisuke Fujiwara v Jeppe Bruun Christensen | W | 2-1 |
| Dutch Int. Qual | 2023/04/13 15:00 | Callum Smith v Keisuke Fujiwara | W | 1-2 |
| Dutch Int. Qual | 2023/04/13 11:30 | Kian-Yu Oei v Keisuke Fujiwara | W | 1-2 |
| Dutch Int. Qual | 2023/04/13 08:15 | Finn Achthoven v Keisuke Fujiwara | W | 0-2 |