| Malaysia Masters - Kwal. | 01/07 03:10 | - | Tanongsak Saensomboonsuk v Koki Watanabe | W | 0-1 | |
| Korea Masters | 11/22 05:20 | 3 | Jun Peng Zhao v Koki Watanabe | L | 2-1 | |
| Korea Masters | 11/21 07:25 | 4 | Koki Watanabe v Kunlavut Vitidsarn | W | 2-0 | |
| Korea Masters | 11/20 10:20 | 5 | Koki Watanabe v Lucas Corvee | W | 2-1 | |
| Vietnam Open | 09/12 09:20 | 4 | Koki Watanabe v Fei Xiang Sun | L | 0-2 | |
| Vietnam Open | 09/12 02:00 | 5 | Kwang Hee Heo v Koki Watanabe | W | 1-2 | |
| Vietnam Open | 09/11 02:30 | 6 | Koki Watanabe v Miha Ivanic | W | 2-0 | |
| Chinese Taipei Open | 09/07 05:00 | 2 | Kwang Hee Heo v Koki Watanabe | L | 2-1 | |
| Chinese Taipei Open | 09/06 09:00 | 3 | Chia Hung Lu v Koki Watanabe | W | 0-2 | |
| Chinese Taipei Open | 09/05 09:15 | 4 | Koki Watanabe v Kean Yew Loh | W | 2-1 | |
| Chinese Taipei Open | 09/04 12:30 | 5 | Chih Chieh Yang v Koki Watanabe | W | 0-2 | |
| Akita Masters | 08/16 02:15 | 3 | Yu Igarashi v Koki Watanabe | L | 2-1 | |
| Akita Masters | 08/15 05:25 | 4 | Koki Watanabe v Pannawit Thongnuam | W | 2-0 | |
| Akita Masters | 08/14 02:10 | 5 | Koki Watanabe v Minoru Koga | W | 2-0 | |
| US Open | 07/11 22:00 | 4 | Dong Keun Lee v Koki Watanabe | L | 2-1 | |
| US Open | 07/10 22:10 | 5 | Victor Svendsen v Koki Watanabe | W | 0-2 | |
| Canada Open | 07/06 21:30 | 2 | Koki Watanabe v Shi Feng Li | L | 1-2 | |
| Canada Open | 07/05 22:00 | 3 | Rajiv Ouseph v Koki Watanabe | W | 0-2 | |
| Canada Open | 07/04 21:55 | 4 | Lan Xi Lei v Koki Watanabe | W | 1-2 | |
| Canada Open | 07/03 19:00 | 5 | Koki Watanabe v H.S. Prannoy | W | 2-0 | |
| Canada Open | 07/03 00:50 | 6 | Koki Watanabe v Jason Anthony Ho-Shue | W | 2-0 | |
| Australian Open - Kwal. | 06/04 00:10 | - | Feixiang Sun v Koki Watanabe | L | 2-1 | |
| New Zealand Open Qual | 04/29 22:35 | - | Koki Watanabe v Feixiang Sun | L | 0-2 | |
| Osaka Int. | 04/07 02:00 | - | Takuma Obayashi v Koki Watanabe | W | 1-2 | |
| Osaka Int. | 04/06 04:30 | - | Koki Watanabe v Pengbo Ren | W | 2-0 | |
| Osaka Int. | 04/04 06:40 | - | Hongyang Weng v Koki Watanabe | W | 0-2 | |
| Orleans Masters | 03/24 14:00 | 1 | Koki Watanabe v Thomas Rouxel | W | 2-1 | |
| Orleans Masters | 03/23 14:30 | 2 | Koki Watanabe v Shifeng Li | W | 2-0 | |
| Orleans Masters | 03/22 15:40 | 3 | Gatjra P F Cupu v Koki Watanabe | W | 0-2 | |
| Orleans Masters | 03/21 17:40 | 4 | Kashyap Parupalli v Koki Watanabe | W | 0-2 |