| Giraldilla Int. XD | 2017/09/19 08:00 | Koki Watanabe v Khosit Phetpradab | L | 0-2 |
| Giraldilla Int. XD | 2017/09/19 02:00 | Koki Watanabe v Takuma Ueda | W | 2-1 |
| US Open | 2017/07/22 01:30 | Koki Watanabe v Kwang Hee Heo | L | 1-2 |
| US Open | 2017/07/21 02:45 | Kieran Merrilees v Koki Watanabe | W | 0-2 |
| US Open | 2017/07/20 18:30 | Lucas Corvee v Koki Watanabe | W | 1-2 |
| US Open | 2017/07/19 16:00 | Gustavo Morales v Koki Watanabe | W | 0-2 |
| 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 |
| Swiss Open WD Qual | 2017/11/07 03:42 | Adam Lau Yu Ming v Chun Chung Hung | W | 0-2 |
| Giraldilla Int. XD | 2017/09/05 11:20 | Wei Feng Chong v Chun Chung Hung | L | 2-0 |
| Giraldilla Int. XD | 2017/09/04 13:55 | Chun Chung Hung v Hoang Nam Nguyen | W | 2-0 |
| Indonesia Masters XD | 2017/06/27 11:30 | Chia Hung Lu v Chun Chung Hung | L | 2-0 |