Stadium: Court 2 Round: 25
| ITF Korea F1 | 2017/05/31 01:00 | Young Seok Kim v Hong Chung | 1-6,4-6 |
| ITF Korea F2 | 2018/06/13 06:50 | Young Seok Kim v Ji Sung Nam | 6-7,0-6 |
| ITF Korea F1 | 2018/06/06 02:50 | Young Seok Kim v Jae Hwan Kim | 4-6,4-6 |
| Challenger Busan | 2018/05/15 02:00 | Young Seok Kim v Marcos Giron | 3-6,3-6 |
| Challenger Gimcheon Qual | 2018/05/06 04:30 | Renta Tokuda v Young Seok Kim | 6-3,6-2 |
| Challenger Gimcheon Qual | 2018/05/05 06:00 | Young Seok Kim v Dong Ju Kim | 6-1,6-3 |
| Challenger Seoul | 2018/05/01 04:35 | Jordan Thompson v Young Seok Kim | 6-1,6-2 |
| ITF Thailand F12 Qual | 2017/12/10 03:00 | Young Seok Kim v Young-Hoon Jeong | 4-6,3-6 |
| ITF Thailand F11 | 2017/12/05 05:05 | Alexey Vatutin v Young Seok Kim | 6-1,3-6,7-6 |
| ITF Korea F2 | 2018/06/13 06:45 | Hong Chung v Chan-Yeong Oh | 2-6,2-6 |
| ITF Korea F1 | 2018/06/08 03:30 | Takuto Niki v Hong Chung | 6-1,6-0 |
| ITF Korea F1 | 2018/06/07 01:00 | Jae-Won Choi v Hong Chung | 6-2,4-6,5-7 |
| ITF Korea F1 | 2018/06/05 01:00 | Alec Adamson v Hong Chung | 5-7,6-2,2-6 |
| Challenger Busan Qual | 2018/05/12 04:15 | Hong Chung v Maverick Banes | 3-6,4-6 |
| ITF Thailand F12 | 2017/12/12 03:00 | Hong Chung v Pascal Meis | 2-6,6-7 |
| ITF Thailand F11 | 2017/12/05 03:30 | Hong Chung v Yan Bai | 2-6,3-6 |
| ITF Korea F5 | 2017/06/30 02:00 | Hong Chung v Seong-Gook Oh | 6-1,3-6,0-6 |