| German Open | 2019/02/27 18:45 | Cheuk Yiu Lee v Kazumasa Sakai | L | 2-0 |
| Indonesia Masters XD | 2018/05/20 09:00 | Kazumasa Sakai v Cheuk Yiu Lee | L | 0-2 |
| New Zealand Open | 2019/05/02 02:40 | Zii Jia Lee v Kazumasa Sakai | L | 2-0 |
| New Zealand Open | 2019/05/01 02:00 | Zeqi Zhou v Kazumasa Sakai | W | 1-2 |
| 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 XD | 2019/01/16 11:05 | Viktor Axelsen v Kazumasa Sakai | L | 2-0 |
| Indonesia Masters XD | 2018/11/14 12:45 | Jonatan Christie v Kazumasa Sakai | L | 2-0 |
| Asia Championships | 2019/04/25 04:15 | Kento Momota v Cheuk Yiu Lee | L | 2-0 |
| Asia Championships | 2019/04/24 02:40 | Cheuk Yiu Lee v Tzu Wei Wang | W | 2-0 |
| Singapore Open Qual | 2019/04/09 05:30 | Sitthikom Thammasin v Cheuk Yiu Lee | L | 2-1 |
| Singapore Open Qual | 2019/04/09 03:10 | Kean Yew Loh v Cheuk Yiu Lee | W | 0-2 |
| India Open | 2019/03/27 11:50 | Cheuk Yiu Lee v Parupalli Kashyap | L | 1-2 |
| Tong Yun Kai Cup | 2019/03/23 11:30 | Cheuk Yiu Lee v Guangzu Lu | L | 0-2 |
| German Open | 2019/02/28 17:50 | Cheuk Yiu Lee v Tien Chen Chou | L | 1-2 |
| German Open | 2019/02/27 18:45 | Cheuk Yiu Lee v Kazumasa Sakai | W | 2-0 |