Head to Head
| Akita Masters | 2019/08/14 02:10 | Koki Watanabe v Minoru Koga | L | 2-0 |
Home History
| Kumamoto Masters | 2024/11/13 02:35 | Minoru Koga v Yu Jen Chi | L | 0-2 |
| Kumamoto Masters Quals | 2024/11/12 05:20 | Minoru Koga v Yun Gyu Lee | W | 2-0 |
| Kumamoto Masters Quals | 2024/11/12 00:00 | Minoru Koga v Ryoma Muramoto | W | 2-1 |
| Kaohsiung Masters | 2023/09/27 11:00 | Yu Huang v Minoru Koga | L | 2-1 |
| Thailand Int. | 2023/03/12 04:00 | Yu Jen Chi v Minoru Koga | W | 1-2 |
| Thailand Int. | 2023/03/11 00:50 | Takuma Obayashi v Minoru Koga | W | 0-2 |
| Thailand Int. | 2023/03/10 08:10 | Minoru Koga v Hyeok Jin Jeon | W | 2-0 |
| Thailand Int. | 2023/03/09 07:45 | Sholeh Aidil v Minoru Koga | W | 0-2 |
Away History
| Denmark Open | 2024/10/20 11:00 | Koki Watanabe v Anders Antonsen | L | 0-2 |
| Denmark Open | 2024/10/19 16:45 | Alex Lanier v Koki Watanabe | W | 0-2 |
| Denmark Open | 2024/10/17 07:00 | Kunlavut Vitidsarn v Koki Watanabe | W | 0-2 |
| Denmark Open | 2024/10/15 07:55 | Koki Watanabe v Chia Hao Lee | W | 2-0 |
| Arctic Open | 2024/10/12 16:55 | Tien Chen Chou v Koki Watanabe | L | 2-1 |
| Arctic Open | 2024/10/11 14:55 | Zii Jia Lee v Koki Watanabe | W | 1-2 |
| Arctic Open | 2024/10/10 10:10 | Guangzu Lu v Koki Watanabe | W | 0-2 |
| Arctic Open | 2024/10/09 08:00 | Julien Carraggi v Koki Watanabe | W | 1-2 |