Stadium: Court 9 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Jakarta | 2023/06/27 05:00 | Koki Matsuda v Issei Okamura | 6-3,7-6 |
| ITF M25 Anseong | 2023/06/21 02:00 | Sanhui Shin v Issei Okamura | 6-2,6-3 |
| ITF M25 Daegu | 2023/06/05 01:00 | Issei Okamura v Chan-Yeong Oh | 1-6,6-4,7-10 |
| ITF M25 Daegu | 2023/06/04 01:00 | Issei Okamura v Jin Sung Han | 7-5,6-3 |
| ITF M15 Karuizawa | 2023/05/30 03:30 | Issei Okamura v Sanhui Shin | 6-3,2-6,1-6 |
| 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 Netanya | 2023/07/01 08:55 | Ofek Shimanov v Filip Peliwo | 6-1,5-7,1-6 |
| ITF M25 Netanya | 2023/06/30 08:45 | Ofek Shimanov v Aaron Cohen | 7-6,1-6,7-5 |
| ITF M25 Netanya | 2023/06/29 08:45 | Ben Patael v Ofek Shimanov | 2-6,3-6 |
| ITF M25 Netanya | 2023/06/28 06:30 | Ofek Shimanov v Trey Hilderbrand | 4-6,7-5,6-3 |
| ITF M25 Netanya | 2023/06/22 07:00 | Edan Leshem v Ofek Shimanov | 3-6,6-1,7-5 |
| ITF M25 Netanya | 2023/06/21 06:30 | Alon Elia v Ofek Shimanov | 3-6,4-6 |
| ITF M25 Netanya | 2023/06/20 06:30 | Vladimir Bazilevskiy v Ofek Shimanov | 1-6,1-6 |
| ITF M25 Netanya | 2023/06/19 09:30 | Daniel Shemesh v Ofek Shimanov | 3-6,5-7 |