| Giraldilla Int. XD | 2017/09/19 02:18 | Yu Hsien Lin v Kazumasa Sakai | W | 1-2 |
| All England Open | 2017/09/15 06:10 | Jonatan Christie v Kazumasa Sakai | L | 2-1 |
| All England Open | 2017/09/14 09:00 | Anders Antonsen v Kazumasa Sakai | W | 1-2 |
| All England Open | 2017/09/13 11:45 | Bin Qiao v Kazumasa Sakai | W | 1-2 |
| US Open | 2017/07/19 17:35 | Kazumasa Sakai v Kieran Merrilees | L | 0-2 |
| Indonesia Masters XD | 2017/07/12 00:00 | Toby Penty v Kazumasa Sakai | L | 2-1 |
| Giraldilla Int. XD | 2017/06/19 23:00 | Anthony Joe v Kazumasa Sakai | W | 0-2 |
| Indonesia Open | 2017/06/18 08:30 | Kazumasa Sakai v Srikanth Kidambi | L | 0-2 |
| Giraldilla Int. XD | 2017/09/19 02:27 | Dong Keun Lee v Ygor Coelho | W | 2-0 |
| All England Open | 2017/09/13 08:10 | Dong Keun Lee v Anthony Sinisuka Ginting | L | 1-2 |
| Indonesia Masters XD | 2017/09/12 07:20 | Dong Keun Lee v Sony Dwi Kuncoro | W | 2-0 |
| Indonesia Masters XD | 2017/09/12 03:20 | Min Ki Kim v Dong Keun Lee | W | 1-2 |
| All England Open | 2017/06/21 02:00 | Dan Lin v Dong Keun Lee | L | 2-0 |
| Indonesia Masters XD | 2017/06/12 08:23 | Emil Holst v Dong Keun Lee | L | 2-1 |
| All England Open | 2017/04/26 08:00 | Dan Lin v Dong Keun Lee | L | 2-0 |
| All England Open | 2017/04/15 07:10 | Sai Praneeth B. v Dong Keun Lee | L | 2-0 |