| Indonesia Masters XD | 2017/07/14 22:40 | Koki Watanabe v Kanta Tsuneyama | L | 0-2 |
| Indonesia Masters XD | 2017/07/13 21:50 | Karan Rajan Rajarajan v Koki Watanabe | W | 0-2 |
| Indonesia Masters XD | 2017/07/12 18:20 | Parupalli, Kashyap v Koki Watanabe | W | 1-2 |
| Indonesia Masters XD | 2017/07/12 00:00 | Hernandez, Arturo v Koki Watanabe | W | 0-2 |
| Open d'Angleterre | 2017/03/15 18:50 | Lin, Dan v Koki Watanabe | L | 2-0 |
| Open d'Angleterre | 2017/03/14 17:00 | Koki Watanabe v Ludik, Milan | W | 2-1 |
| Open d'Angleterre | 2017/02/09 14:00 | Phetpradab, Khosit v Koki Watanabe | L | 2-0 |
| Open d'Angleterre | 2017/02/08 11:30 | Koki Watanabe v Teerapat Kleawan | W | 2-0 |