| India Open | 2019/03/27 05:50 | Brice Leverdez v Zeqi Zhou | L | 2-1 |
| China Masters | 2019/03/15 11:40 | Lakshya Sen v Zeqi Zhou | L | 2-1 |
| China Masters | 2019/03/14 09:55 | Weiyi Zhang v Zeqi Zhou | W | 0-2 |
| China Masters | 2019/03/13 13:20 | Yang Yang v Zeqi Zhou | W | 0-2 |
| German Open | 2019/02/27 18:00 | Zeqi Zhou v Tien Chen Chou | L | 0-2 |
| Spain Masters | 2019/02/21 14:50 | Zeqi Zhou v Junpeng Zhao | L | 1-2 |
| Spain Masters | 2019/02/20 18:00 | Jason Anthony Ho-Shue v Zeqi Zhou | W | 1-2 |
| Thailand Masters | 2019/01/09 11:20 | Kean Yew Loh v Zeqi Zhou | L | 2-0 |
| Asia Championships | 2019/04/24 04:00 | Sameer Verma v Kazumasa Sakai | L | 2-1 |
| All England Open | 2019/03/06 16:00 | Jan O Jorgensen v Kazumasa Sakai | L | 2-0 |
| German Open | 2019/02/27 18:45 | Cheuk Yiu Lee v Kazumasa Sakai | L | 2-0 |
| Indonesia Masters | 2019/01/23 02:30 | Sitthikom Thammasin v Kazumasa Sakai | L | 2-0 |
| Indonesia Masters - Mixdouble | 2019/01/16 11:05 | Viktor Axelsen v Kazumasa Sakai | L | 2-0 |
| Indonesia Masters - Mixdouble | 2018/11/14 12:45 | Jonatan Christie v Kazumasa Sakai | L | 2-0 |
| All England Open | 2018/11/08 04:50 | Kazumasa Sakai v Yuqi Shi | L | 0-2 |
| All England Open | 2018/11/07 06:15 | Suppanyu Avihingsanon v Kazumasa Sakai | W | 1-2 |