| India PBL | 02/08 14:30 | - | Sai Praneeth B. v Kazumasa Sakai | W | 0-2 | |
| India PBL | 02/03 14:50 | - | Ajay Jayaram v Kazumasa Sakai | L | 2-1 | |
| India PBL | 02/01 10:00 | - | Kazumasa Sakai v Tanongsak Saensomboonsuk | L | 0-2 | |
| India PBL | 01/30 11:20 | - | Kazumasa Sakai v S.K. Karunakaran | W | 2-0 | |
| India PBL | 01/27 13:50 | - | Kazumasa Sakai v Ansal Yadav | W | 2-0 | |
| India PBL | 01/25 14:30 | - | Kazumasa Sakai v Dong Keun Lee | L | 0-2 | |
| Kórea - Masters | 11/20 00:40 | 5 | Kazumasa Sakai v Sameer Verma | - | Retired | |
| Indonesia Masters | 10/02 12:20 | 5 | Kazumasa Sakai v Wisnu Yuli Prasetyo | L | 0-2 | |
| Chinese Taipei Open | 09/04 10:40 | 5 | Kazumasa Sakai v Sourabh Verma | L | 0-2 | |
| Akita Masters | 08/15 02:15 | 4 | Kazumasa Sakai v Yu Igarashi | L | 1-2 | |
| Akita Masters | 08/14 03:30 | 5 | Kazumasa Sakai v Kodai Naraoka | W | 2-0 | |
| US Open | 07/11 21:15 | 4 | Tanongsak Saensomboonsuk v Kazumasa Sakai | L | 2-0 |