Stadium: Court 8 Round: 62 Ground: Hardcourt outdoor
| ITF Korea F3 Qual | 2018/06/17 03:00 | Young-Hoon Jeong v Jae Won Yun | 6-2,6-2 |
| ITF Korea F3 Qual | 2018/06/16 02:00 | Young-Hoon Jeong v Sung Jun Park | 6-3,6-3 |
| ITF Korea F1 | 2018/06/08 02:00 | Jeamoon Lee v Young-Hoon Jeong | 6-1,6-4 |
| ITF Korea F1 | 2018/06/07 04:00 | Hyeong Jin Cho v Young-Hoon Jeong | 0-6,1-6 |
| ITF Korea F1 | 2018/06/06 01:00 | Young-Hoon Jeong v Seong Chan Hong | 1-6,6-3,6-2 |
| ITF Korea F1 | 2018/06/04 01:00 | Young-Hoon Jeong v Hyeong Don Kim | 6-2,7-5 |
| ITF Korea F1 | 2018/06/03 01:00 | Young-Hoon Jeong v Ilsang Yoon | 6-4,5-7,6-2 |
| ITF Thailand F12 | 2017/12/13 04:15 | Young-Hoon Jeong v Ti Chen | 4-6,6-0,1-6 |
| ITF Korea F3 Qual | 2018/06/17 03:00 | Geun Jun Kim v Dae-Hee Lee | 7-5,7-5 |
| ITF Korea F3 Qual | 2018/06/16 03:30 | Jaeyoung Park v Geun Jun Kim | 1-6,0-6 |
| ITF Korea F2 | 2018/06/09 01:00 | Minjong Park v Geun Jun Kim | 6-1,6-4 |
| ITF Korea F3 Qual | 2017/06/11 04:30 | Ku Keon Kang v Geun Jun Kim | 6-2,6-2 |
| ITF Korea F2 Qual | 2017/06/03 03:00 | Geun Jun Kim v Hyung-Chan Lim | 6-7,0-6 |