| Kinesiska Taipei Open | 2019/09/04 12:30 | Chih Chieh Yang v Koki Watanabe | W | 0-2 |
| Akita Masters | 2019/08/16 02:15 | Yu Igarashi v Koki Watanabe | L | 2-1 |
| Akita Masters | 2019/08/15 05:25 | Koki Watanabe v Pannawit Thongnuam | W | 2-0 |
| Akita Masters | 2019/08/14 02:10 | Koki Watanabe v Minoru Koga | W | 2-0 |
| US Open | 2019/07/11 22:00 | Dong Keun Lee v Koki Watanabe | L | 2-1 |
| US Open | 2019/07/10 22:10 | Victor Svendsen v Koki Watanabe | W | 0-2 |
| Canada Open | 2019/07/06 21:30 | Koki Watanabe v Shifeng Li | L | 1-2 |
| Canada Open | 2019/07/05 22:00 | Rajiv Ouseph v Koki Watanabe | W | 0-2 |
| Kinesiska Taipei Open | 2019/09/04 14:00 | Kean Yew Loh v Ka Long Angus NG | W | 2-0 |
| VM | 2019/08/22 10:40 | Kean Yew Loh v Tien Chen Chou | L | 1-2 |
| VM | 2019/08/21 08:40 | Thomas Rouxel v Kean Yew Loh | W | 1-2 |
| VM | 2019/08/19 16:30 | Kean Yew Loh v Sameer Verma | W | 2-1 |
| Hyderabad Open | 2019/08/11 07:30 | Kean Yew Loh v Sourabh Verma | L | 1-2 |
| Hyderabad Open | 2019/08/10 10:00 | Kwang Hee Heo v Kean Yew Loh | W | 1-2 |
| Hyderabad Open | 2019/08/09 09:30 | Kean Yew Loh v Subhankar Dey | W | 2-0 |
| Hyderabad Open | 2019/08/08 11:00 | Parupalli Kashyap v Kean Yew Loh | W | 1-2 |