Stadium: Clay Court 6 Round: 25 Ground: Hardcourt outdoor
| ITF Turkey F5 | 2018/02/05 07:30 | Jacopo Berrettini v Ji Hoon Son | 5-7,4-6 |
| ITF Turkey F5 | 2018/02/04 07:30 | Hanyi Liu v Ji Hoon Son | 1-6,0-6 |
| ITF Turkey F4 | 2018/02/02 08:00 | Dragos Dima v Ji Hoon Son | 6-0,6-1 |
| ITF Turkey F4 | 2018/02/01 09:05 | Ji Hoon Son v Cheong-Eui Kim | 6-4,6-4 |
| 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 Turkey F5 | 2018/02/05 07:30 | Ji Sung Nam v Yuichiro Inui | 7-5,6-0 |
| ITF Turkey F5 | 2018/02/04 07:30 | Ji Sung Nam v Ki Su Jung | 7-6,6-3 |
| ITF Turkey F4 | 2018/01/29 08:00 | Ji Sung Nam v Dan Dowson | 7-5,6-7,4-6 |
| ITF Turkey F4 | 2018/01/28 07:30 | Ji Sung Nam v Sorin Andrei Iordache | 6-2,6-4 |
| ITF Thailand F12 | 2017/12/14 03:30 | Renta Tokuda v Ji Sung Nam | 6-3,6-2 |
| ITF Thailand F12 | 2017/12/13 04:30 | Ji Sung Nam v Daniel Altmaier | 7-5,6-2 |
| ITF Thailand F12 | 2017/12/12 08:20 | Hady Habib v Ji Sung Nam | 5-7,5-7 |
| ITF Thailand F12 Qual | 2017/12/11 04:25 | Ji Sung Nam v Chien Hsun Lo | 6-4,7-5 |