Stadium: Court 3 Round: 25 Ground: Clay
| ITF M25 Nottingham | 2023/05/01 09:00 | Issei Okamura v Ryan James Storrie | 3-6,3-6 |
| ITF M25 Nottingham Qual | 2023/04/30 09:00 | Issei Okamura v Joseph White | 6-0,6-2 |
| ITF M25 Nottingham | 2023/04/25 09:00 | Issei Okamura v George Houghton | 2-6,1-6 |
| ITF M25 Nottingham Qual | 2023/04/24 13:00 | Issei Okamura v Max Benaim | 6-4,6-4 |
| ITF M25 Kashiwa | 2023/04/06 03:40 | Kaito Uesugi v Issei Okamura | 6-1,6-4 |
| ITF M25 Kashiwa | 2023/04/05 05:35 | Issei Okamura v Sho Shimabukuro | 7-6,0-6,7-6 |
| ITF M25 Kashiwa | 2023/04/03 01:00 | Koki Matsuda v Issei Okamura | 1-6,2-6 |
| ITF M25 Kashiwa | 2023/04/02 00:30 | Taketo Takamisawa v Issei Okamura | 1-6,2-6 |
| 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 M25 Jakarta | 2023/04/12 07:00 | Sanhui Shin v Evgeny Donskoy | 2-6,3-6 |
| ITF M25 Jakarta | 2023/04/11 04:05 | Yeongseok Jeong v Sanhui Shin | 6-4,3-6,8-10 |
| ITF M25 Jakarta | 2023/04/10 06:00 | Putu Agassi Pranata Nida v Sanhui Shin | 1-6,1-6 |
| ITF M15 Singapore | 2023/04/08 02:00 | Dayne Kelly v Sanhui Shin | 6-3,6-2 |