Stadium: Clay Court 1 Round: 26 Ground: Hardcourt outdoor
| ITF Turkey F4 | 2018/01/30 07:30 | Duje Kekez v Ji Hoon Son | 1-6,4-6 |
| ITF Turkey F4 | 2018/01/29 08:00 | Sergio Luis H Ramirez v Ji Hoon Son | 2-6,3-6 |
| 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 Turkey F4 | 2018/01/30 09:05 | Sefa Suluoglu v Cheong-Eui Kim | 0-6,0-6 |
| ITF Turkey F3 | 2018/01/27 07:30 | Mate Delic v Cheong-Eui Kim | 6-4,5-7,6-1 |
| ITF Turkey F3 | 2018/01/26 07:30 | Cheong-Eui Kim v Tak Khunn Wang | 2-6,6-4,6-4 |
| ITF Turkey F3 | 2018/01/25 08:30 | Cheong-Eui Kim v Muhammet Haylaz | 6-3,6-0 |
| ITF Turkey F3 | 2018/01/23 08:30 | Cheong-Eui Kim v Maxime Tabatruong | 6-2,6-1 |
| ITF Turkey F2 | 2018/01/18 07:30 | Gianluca Mager v Cheong-Eui Kim | 6-2,3-6,6-3 |
| ITF Turkey F2 | 2018/01/16 07:30 | Michal Konecny v Cheong-Eui Kim | 3-6,2-6 |
| ITF Hong Kong F5 | 2017/12/26 03:40 | Yan Bai v Cheong-Eui Kim | 7-6,6-4 |