| Open d'Angleterre | 2016/10/05 09:45 | Sakai, Kazumasa v Kodai Naraoka | W | 2-1 |
| US Open 2019, MS | 2019/07/11 21:15 | Saensomboonsuk, Tanongsak v Sakai, Kazumasa | L | 2-0 |
| US Open 2019, MS | 2019/07/10 21:15 | Lam, Timothy v Sakai, Kazumasa | W | 0-2 |
| Canada Open | 2019/07/03 17:50 | Sakai, Kazumasa v Heo, Kwang Hee | L | 0-2 |
| Australian Open | 2019/06/07 08:00 | Tzu Wei Wang v Sakai, Kazumasa | L | 2-0 |
| Australian Open | 2019/06/06 03:45 | Sakai, Kazumasa v Kantaphon Wangcharoen | W | 2-1 |
| Australian Open | 2019/06/05 01:40 | Sakai, Kazumasa v Cheuk Yiu Lee | W | 2-0 |
| New Zealand Open 2019, MS | 2019/05/02 02:40 | Zii Jia Lee v Sakai, Kazumasa | L | 2-0 |
| New Zealand Open 2019, MS | 2019/05/01 02:00 | Zhou, Z. Q. v Sakai, Kazumasa | W | 1-2 |
| Akita Masters 2019, MS | 2019/08/13 01:10 | Kodai Naraoka v Hassan, Farouk Mohammed | W | 2-0 |
| Russia Open 2019, MS | 2019/07/20 03:00 | Kodai Naraoka v Kean Yew Loh | L | 0-2 |
| Russia Open 2019, MS | 2019/07/19 04:00 | Kodai Naraoka v Nhat Nguyen | W | 2-0 |
| Russia Open 2019, MS | 2019/07/18 03:45 | Subhankar Dey v Kodai Naraoka | W | 0-2 |
| Vietnam Int. | 2019/04/13 06:30 | Kodai Naraoka v Kholik, Firman Abdul | L | 0-2 |
| Osaka Int. | 2019/04/04 00:40 | Kodai Naraoka v Li, S. F. | L | 1-2 |
| Jamaica Int. | 2019/03/10 22:30 | Kevin Cordon v Kodai Naraoka | W | 0-2 |
| Jamaica Int. | 2019/03/09 22:00 | Krausz, Gergely v Kodai Naraoka | W | 0-2 |