Stadium: Court 6 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Nishi-Tokyo | 2019/03/14 01:00 | Min-Kyu Song v Ji Sung Nam | 4-6,3-6 |
| ITF Korea F8 | 2016/09/09 03:00 | Min-Kyu Song v Ji Sung Nam | 6-2,0-6,2-6 |
| Challenger Gwangju | 2019/05/14 06:00 | Ji Sung Nam v Yuichi Sugita | 2-6,2-6 |
| Challenger Gwangju | 2019/05/13 02:00 | Ji Sung Nam v Rio Noguchi | 6-2,6-1 |
| Challenger Busan | 2019/05/06 07:40 | Cem Ilkel v Ji Sung Nam | 6-4,7-6 |
| Challenger Seoul | 2019/05/01 02:00 | Ji Sung Nam v Ramkumar Ramanathan | 3-6,6-7 |
| Challenger Seoul | 2019/04/30 03:35 | Ji Sung Nam v Duckhee Lee | 7-5,6-1 |
| Challenger Seoul | 2019/04/29 02:00 | Ji Sung Nam v Ji Hoon Son | 6-3,6-2 |
| ITF M25 Matsuyama | 2019/04/12 01:00 | Ji Sung Nam v Gage Brymer | 3-6,3-6 |
| ITF M25 Matsuyama | 2019/04/09 04:55 | Ji Sung Nam v Mark Whitehouse | 7-6,6-2 |
| Challenger Gwangju | 2019/05/15 03:50 | Min-Kyu Song v Jason Jung | 3-6,2-6 |
| Challenger Gwangju | 2019/05/14 02:00 | Evan Song v Min-Kyu Song | 3-6,4-6 |
| Challenger Gwangju | 2019/05/13 02:00 | Min-Kyu Song v Hong Chung | 6-4,6-4 |
| Challenger Busan | 2019/05/07 02:00 | Min-Kyu Song v Evan King | 6-3,3-6,2-6 |
| ITF M15 Kofu | 2019/03/21 04:10 | Jumpei Yamasaki v Min-Kyu Song | 7-5,6-1 |
| ITF M15 Kofu | 2019/03/20 03:30 | Kousuke Ogura v Min-Kyu Song | 3-6,6-3,3-6 |
| ITF M15 Nishi-Tokyo | 2019/03/14 01:00 | Min-Kyu Song v Ji Sung Nam | 4-6,3-6 |
| ITF Thailand F8 | 2018/11/07 02:00 | Min-Kyu Song v Kuan-Yi Lee | 3-6,3-6 |