Stadium: Court 2 Round: 29 Ground: Clay
| ITF M15 Karuizawa | 2023/06/03 07:30 | Sanhui Shin v Yuta Kawahashi | 3-6,6-3,6-7 |
| ITF M15 Karuizawa | 2023/06/03 03:30 | Sanhui Shin v Jumpei Yamasaki | 6-3,7-6 |
| ITF M15 Karuizawa | 2023/06/01 00:30 | Keisuke Saitoh v Sanhui Shin | 4-6,1-6 |
| ITF M15 Karuizawa | 2023/05/30 03:30 | Issei Okamura v Sanhui Shin | 6-3,2-6,1-6 |
| Challenger Gwangju | 2023/05/02 04:25 | Bu Yunchaokete v Sanhui Shin | 6-4,6-1 |
| Challenger Seoul | 2023/04/23 03:40 | Sanhui Shin v Dayne Kelly | 2-6,2-6 |
| ITF M25 Jakarta | 2023/04/18 02:15 | Makoto Ochi v Sanhui Shin | 6-2,6-1 |
| ITF M25 Jakarta | 2023/04/17 03:35 | Raphael D P Paska v Sanhui Shin | 0-6,1-6 |
| ITF M15 Karuizawa | 2023/06/03 07:00 | Sora Fukuda v Tatsuma Ito | 6-7,6-7 |
| ITF M15 Karuizawa | 2023/06/03 03:30 | Kazuma Kawachi v Tatsuma Ito | 1-6,4-6 |
| ITF M15 Karuizawa | 2023/06/01 03:20 | Preston Brown v Tatsuma Ito | 3-6,0-6 |
| ITF M15 Karuizawa | 2023/05/31 03:35 | Seon Yong Han v Tatsuma Ito | 6-7,3-6 |
| Challenger Busan | 2023/05/08 03:40 | Yuki Mochizuki v Tatsuma Ito | 6-4,4-6,6-2 |
| Challenger Busan | 2023/05/07 02:30 | Tatsuma Ito v Mukund Sasikumar | 5-7,6-4,6-4 |
| Challenger Gwangju | 2023/05/01 01:30 | Tatsuma Ito v Peter Gojowczyk | 4-6,4-6 |
| Challenger Gwangju | 2023/04/30 02:35 | Edan Leshem v Tatsuma Ito | 1-6,4-6 |