Head to Head
| Vietnam Open | 2019/09/12 09:20 | Koki Watanabe v Feixiang Sun | L | 0-2 |
| Australian Open Qual | 2019/06/04 00:10 | Feixiang Sun v Koki Watanabe | L | 2-1 |
| New Zealand Open Qual | 2019/04/29 22:35 | Koki Watanabe v Feixiang Sun | L | 0-2 |
Home History
| Indonesia Masters Qual | 2020/01/14 08:38 | Koki Watanabe v Junpeng Zhao | L | 0-1 |
| Indonesia Masters Qual | 2020/01/14 04:00 | Toby Penty v Koki Watanabe | W | 0-2 |
| Malaysia Masters | 2020/01/08 07:30 | Koki Watanabe v Ka Long Angus Ng | L | 1-2 |
| Malaysia Masters Qual | 2020/01/07 06:35 | Joo Ven Soong v Koki Watanabe | W | 1-2 |
| Malaysia Masters Qual | 2020/01/07 03:10 | Tanongsak Saensomboonsuk v Koki Watanabe | W | 0-1 |
| Korea Masters | 2019/11/22 05:20 | Junpeng Zhao v Koki Watanabe | L | 2-1 |
| Korea Masters | 2019/11/21 07:25 | Koki Watanabe v Kunlavut Vitidsarn | W | 2-0 |
| Korea Masters | 2019/11/20 10:20 | Koki Watanabe v Lucas Corvee | W | 2-1 |
Away History
| Indonesia Masters Qual | 2020/01/14 08:10 | Brice Leverdez v Feixiang Sun | L | 2-1 |
| Indonesia Masters Qual | 2020/01/14 04:50 | Feixiang Sun v Jason Anthony Ho-Shue | W | 2-0 |
| Malaysia Masters | 2020/01/08 05:15 | Kenta Nishimoto v Feixiang Sun | L | 2-0 |
| Malaysia Masters Qual | 2020/01/07 04:20 | Brice Leverdez v Feixiang Sun | W | 0-2 |
| Macau Open | 2019/11/02 06:20 | Sitthikom Thammasin v Feixiang Sun | L | 2-1 |
| Macau Open | 2019/11/01 04:40 | Chico Aura Dwi Wardoyo v Feixiang Sun | W | 0-2 |
| Macau Open | 2019/10/31 07:45 | Feixiang Sun v Wan Ho Son | W | 2-0 |
| Macau Open | 2019/10/30 09:10 | Feixiang Sun v Ajay Jayaram | W | 2-0 |