Round: 44 Ground: Hardcourt outdoor
| ITF Turkey F5 | 2018/02/04 07:30 | Ji Sung Nam v Ki Su Jung | 7-6,6-3 |
| ITF Turkey F3 | 2018/01/23 07:30 | Ki Su Jung v Jung-Woong Na | 1-6,2-6 |
| ITF Turkey F2 | 2018/01/16 07:30 | Ki Su Jung v Calin Manda | 7-6,3-6,6-7 |
| ITF Korea F5 | 2017/06/28 04:55 | Daniel Yoo v Ki Su Jung | 6-0,6-1 |
| ITF Korea F4 | 2017/06/20 02:30 | Ki Su Jung v Min-Kyu Song | 3-6,0-6 |
| ITF Korea F3 | 2017/06/13 04:40 | Jung-Woong Na v Ki Su Jung | 6-4,6-1 |
| ITF Korea F2 Qual | 2017/06/03 03:00 | Ki Su Jung v Ivan Kalinin | 6-7,2-6 |
| ITF Korea F1 Qual | 2017/05/27 01:00 | Jaeyoung Park v Ki Su Jung | 7-5,6-3 |