Stadium: Court 4 Round: 54 Ground: Hardcourt outdoor
| 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 |
| Challenger Busan | 2023/05/07 07:00 | Ji Hoon Son v Egor Gerasimov | 6-4,0-6,6-1 |
| ITF M15 Nakhon Si Thammarat | 2023/07/02 07:05 | Anapat Timangkul v Seon Yong Han | 1-6,2-6 |
| ITF M25 Anseong | 2023/06/18 01:00 | Seon Yong Han v Seung Woo Cho | 5-7,3-6 |
| ITF M25 Anseong | 2023/06/18 01:00 | Seon Yong Han v Jeong Heon Lee | 6-4,6-1 |
| ITF M25 Changwon | 2023/06/11 05:35 | Seon Yong Han v Chan-Yeong Oh | 3-6,2-6 |
| ITF M25 Changwon | 2023/06/11 04:10 | Seon Yong Han v Woohyuk Chang | 5-7,3-6 |
| ITF M25 Daegu | 2023/06/07 00:50 | Seon Yong Han v Taisei Ichikawa | 2-6,2-6 |
| ITF M15 Karuizawa | 2023/05/31 03:35 | Seon Yong Han v Tatsuma Ito | 6-7,3-6 |
| Challenger Gwangju | 2023/04/30 05:55 | Seon Yong Han v Dayne Kelly | 2-6,6-7 |