Stadium: Court 11 Round: 25
| Challenger Gwangju | 2018/08/19 01:55 | Maverick Banes v Ji Sung Nam | 6-3,4-6,6-4 |
| Challenger Gwangju | 2018/08/18 02:00 | Alexander Bublik v Ji Sung Nam | 6-7,5-7 |
| Challenger Gwangju | 2018/08/17 03:30 | Akira Santillan v Ji Sung Nam | 2-6,3-6 |
| Challenger Gwangju | 2018/08/16 06:00 | Zihao Xia v Ji Sung Nam | 2-6,3-6 |
| Challenger Gwangju | 2018/08/14 08:20 | Ji Sung Nam v Henri Laaksonen | 6-1,6-1 |
| Challenger Gwangju Qual | 2018/08/13 01:00 | Ji Sung Nam v Sami Reinwein | 6-2,6-4 |
| Challenger Gwangju Qual | 2018/08/12 03:25 | Ji Sung Nam v Vasko Mladenov | 6-3,6-3 |
| ITF China F10 | 2018/07/13 06:15 | Ji Sung Nam v Rigele Te | 3-6,4-6 |
| ITF Korea F5 | 2018/08/20 01:00 | Seong Jae Han v Seong Taek Im | 2-6,2-6 |
| ITF Korea F5 | 2018/08/19 02:00 | Jin Sung Han v Seong Jae Han | 4-6,5-7 |
| ITF Korea F5 | 2018/08/18 03:00 | Seon Yong Han v Seong Jae Han | 4-6,3-6 |
| ITF Korea F4 | 2018/08/12 02:00 | Seong Taek Im v Seong Jae Han | 7-5,6-2 |
| ITF Korea F4 | 2018/08/11 01:00 | Seong Jae Han v Byeonghun Kim | 6-2,4-6,6-3 |
| ITF Korea F3 Qual | 2018/06/17 04:30 | Seong Jae Han v Oh-Hee Kwon | 4-6,1-6 |
| ITF Korea F3 Qual | 2018/06/16 03:30 | Dukyoung Kim v Seong Jae Han | 6-3,4-6,1-6 |
| ITF Korea F2 | 2018/06/09 03:00 | Woo Young Lee v Seong Jae Han | 3-6,6-1,7-6 |