Stadium: Court 13 Round: 45
| ITF Korea F5 | 2017/06/28 06:15 | Ji Hoon Son v Seong-Gook Oh | 5-7,1-6 |
| ITF Thailand F11 | 2017/12/05 08:45 | Daniiar Duldaev v Ji Hoon Son | 6-4,6-2 |
| ITF Thailand F11 Qual | 2017/12/04 04:40 | Ji Hoon Son v Jae Hwan Kim | 6-1,6-4 |
| ITF Thailand F11 Qual | 2017/12/03 03:00 | Yurii Dzhavakian v Ji Hoon Son | 2-6,6-2,1-6 |
| ITF Thailand F11 Qual | 2017/12/02 05:00 | Natthasith Kunsuwan v Ji Hoon Son | 3-6,4-6 |
| ITF Korea F5 | 2017/06/28 06:15 | Ji Hoon Son v Seong-Gook Oh | 5-7,1-6 |
| ITF Korea F3 | 2017/06/14 01:00 | Yunseong Chung v Ji Hoon Son | 7-6,6-4 |
| ITF Korea F2 | 2017/06/09 02:00 | Ji Hoon Son v Jeamoon Lee | 4-6,3-6 |
| ITF Korea F2 | 2017/06/08 01:00 | Yunseong Chung v Ji Hoon Son | 6-7,6-0,6-7 |
| ITF China F1 | 2018/01/11 02:30 | Seong-Gook Oh v Shinji Hazawa | 3-6,4-6 |
| ITF China F1 | 2018/01/08 03:05 | Seong-Gook Oh v Yuanfeng Li | 7-6,6-2 |
| Challenger Toyota Qual | 2017/11/11 00:30 | Seong-Gook Oh v Yuya Kibi | 3-6,1-6 |
| ITF India F8 | 2017/09/15 04:30 | Seong-Gook Oh v Colin Van Beem | 6-7,6-1,4-6 |
| ITF India F8 | 2017/09/14 05:00 | Seong-Gook Oh v Clement Larriere | 6-0,1-6,6-4 |
| ITF India F8 | 2017/09/13 07:00 | Jui-Chen Hung v Seong-Gook Oh | 2-6,2-6 |
| ITF India F8 | 2017/09/11 08:25 | Seong-Gook Oh v S D Prajwal Dev | 2-6,6-4,6-1 |
| ITF India F7 | 2017/09/06 04:00 | Jayesh Pungliya v Seong-Gook Oh | 7-5,7-6 |