Stadium: Court 14 Round: 45
| 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 Thailand F11 Qual | 2017/12/04 03:00 | Young Seok Kim v Dusty H. Boyer | 6-3,6-4 |
| ITF Thailand F11 Qual | 2017/12/03 03:00 | Young Seok Kim v Congsup Congcar | 3-6,6-1,6-3 |
| ITF Thailand F10 | 2017/11/28 04:30 | Young Seok Kim v Yan Bai | 3-6,7-6,3-6 |
| Challenger Gwangju Qual | 2017/09/16 03:20 | Young Seok Kim v Marinko Matosevic | 5-7,1-6 |
| ITF Korea F5 | 2017/07/02 04:00 | Young Seok Kim v Tae-Woo Lee | 5-7,6-4,6-1 |
| Challenger Seoul Qual | 2018/04/28 01:30 | Sanhui Shin v Dong Ju Kim | 6-4,6-4 |
| ITF Korea F5 | 2017/06/28 04:40 | Dong Ju Kim v Hyun-Woo Nam | 0-6,4-6 |
| ITF Korea F5 | 2017/06/27 01:30 | Sungbeen Sim v Dong Ju Kim | 3-6,6-3,2-6 |