| UTR Pro Miki | 2023/02/11 02:00 | Tomohiro Masabayashi v Natsuki Yamamoto | 6-0,6-3 |
| UTR Pro Miki | 2023/02/10 02:00 | Natsuki Yamamoto v So Ogiri | 7-5,7-5 |
| UTR Pro Miki | 2023/02/08 00:30 | Natsuki Yamamoto v Lennon Jones | 2-6,4-6 |
| UTR Pro Miki | 2023/02/07 05:30 | Natsuki Yamamoto v Ryuki Matsuda | 7-5,7-6 |
| UTR Pro Miki | 2023/02/06 03:30 | Yuki Karatsu v Natsuki Yamamoto | 2-6,4-6 |