| ITF M25 Changwon | 06/16 03:00 | 62 | Minhyeok Kim v Sangheon Lee | 7-5,6-1 | |
| ITF M15 Daegu | 06/03 02:35 | 62 | Jungwon Park v Sangheon Lee | 6-0,6-4 | |
| ITF M15 Daegu | 06/02 00:00 | 62 | Sangheon Lee v David Kim | 2-6,6-4,10-7 | |
| ITF M25 Changwon | 06/11 06:30 | 62 | Sangheon Lee v Jungmin Hwang | 7-6,6-7,4-10 |