Stadium: Court 2 Round: 28
| ITF Korea F6 | 2018/08/31 03:00 | Young Seok Kim v Seong-Gook Oh | 5-7,6-2,4-6 |
| ITF Korea F6 | 2018/08/30 03:00 | Oh-Hee Kwon v Seong-Gook Oh | 4-6,1-6 |
| ITF Korea F6 | 2018/08/28 02:00 | William Ma v Seong-Gook Oh | 6-4,2-6,0-6 |
| ITF Korea F4 | 2018/08/19 03:15 | Jae Hwan Kim v Seong-Gook Oh | 6-3,3-6,4-6 |
| ITF Korea F4 | 2018/08/18 01:00 | Seong-Gook Oh v Uisung Park | 6-4,6-2 |
| ITF Korea F4 | 2018/08/17 01:00 | Seong-Gook Oh v Mousheg Hovhannisyan | 4-6,6-4,6-2 |
| ITF Korea F4 | 2018/08/16 01:00 | Seong-Gook Oh v Oh-Hee Kwon | 6-4,6-4 |
| ITF Malaysia F2 | 2018/07/10 03:50 | Rhett Purcell v Seong-Gook Oh | 7-6,7-5 |
| ITF Korea F6 | 2018/08/31 03:00 | Jung-Woong Na v Min-Kyu Song | 1-6,2-6 |
| ITF Korea F6 | 2018/08/30 03:00 | Dong-Hak Sin v Min-Kyu Song | 7-6,2-6,4-6 |
| ITF Korea F6 | 2018/08/29 03:00 | Sung Hun Kim v Min-Kyu Song | 2-6,2-6 |
| ITF China F10 | 2018/07/10 03:30 | Min-Kyu Song v Runhao Hua | 4-6,2-6 |
| ITF China F9 | 2018/07/07 07:30 | Yan Bai v Min-Kyu Song | 7-6,6-3 |
| ITF China F9 | 2018/07/06 03:00 | Min-Kyu Song v Shuichi Sekiguchi | 6-2,6-1 |
| ITF China F9 | 2018/07/05 03:00 | Min-Kyu Song v Jie Cui | 7-5,6-0 |
| ITF China F9 | 2018/07/03 09:10 | Yuya Kibi v Min-Kyu Song | 5-7,2-6 |