Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Nakhon Si Thammarat | 2023/07/03 03:20 | Ji Hoon Son v Seon Yong Han | 6-2,6-1 |
| ITF M15 Nakhon Si Thammarat | 2023/07/02 07:40 | Ji Hoon Son v Vadym Konovchuk | 6-3,6-3 |
| ITF M25 Anseong | 2023/06/20 02:00 | Ji Hoon Son v Yunseok Jang | 6-4,3-6,0-6 |
| ITF M25 Changwon | 2023/06/14 02:50 | Rimpei Kawakami v Ji Hoon Son | 6-7,6-4,7-5 |
| ITF M25 Changwon | 2023/06/12 05:45 | Ji Hoon Son v Suk Hyun Choo | 6-3,6-3 |
| ITF M25 Changwon | 2023/06/11 02:30 | Ji Hoon Son v Giovanni Agostinetto | 6-2,6-3 |
| ITF M25 Daegu | 2023/06/06 03:55 | Minjong Park v Ji Hoon Son | 6-3,3-6,6-1 |
| Challenger Busan | 2023/05/08 04:30 | Yasutaka Uchiyama v Ji Hoon Son | 7-6,3-6,6-1 |
| ITF M15 Jakarta | 2023/06/29 03:00 | Koki Matsuda v Fitriadi M Rifqi | 1-6,4-6 |
| ITF M15 Jakarta | 2023/06/27 05:00 | Koki Matsuda v Issei Okamura | 6-3,7-6 |
| ITF M15 Jakarta | 2023/06/23 02:00 | Koki Matsuda v Yurii Dzhavakian | 6-3,4-6,5-7 |
| ITF M15 Jakarta | 2023/06/22 02:00 | Koki Matsuda v Kazuma Kawachi | 7-6,4-6,6-2 |
| ITF M25 Nakhon Si Thammarat | 2023/06/13 04:50 | Koki Matsuda v Krittin Koaykul | 6-3,4-6,6-7 |
| ITF M15 Nakhon Si Thammarat | 2023/06/07 03:45 | Koki Matsuda v Orel Kimhi | 4-6,3-6 |
| ITF M25 Jakarta | 2023/04/27 03:00 | Koki Matsuda v Digvijay Pratap Singh | 2-6,3-6 |
| ITF M25 Jakarta | 2023/04/26 05:35 | Anthony Susanto v Koki Matsuda | 3-6,4-6 |