Stadium: Court 8 Round: 62 Ground: Hardcourt outdoor
| 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 Thailand F12 | 2017/12/12 05:30 | Xin Gao v Young-Hoon Jeong | 1-6,7-6,2-6 |
| ITF Korea F3 Qual | 2018/06/16 05:00 | Jae Won Yun v Cheong Hwi Kim | 6-0,5-7,6-1 |
| ITF Korea F2 | 2018/06/09 02:00 | Jae Won Yun v Hyeon il Jung | 6-4,4-6,3-6 |
| ITF Korea F5 | 2017/06/25 01:00 | Geon Ju Shin v Jae Won Yun | 6-4,6-3 |
| ITF Korea F3 Qual | 2017/06/10 05:00 | Jae Won Yun v Seung-Hun Shin | 3-6,2-6 |
| ITF Korea F2 | 2017/06/06 01:00 | Jae Won Yun v Chan-Yeong Oh | 2-6,0-6 |
| ITF Korea F1 Qual | 2017/05/27 02:00 | Jae Won Yun v Ho-Gi Kang | 7-5,2-6,3-6 |
| ITF Egypt F33 | 2015/02/23 09:50 | Simeon Rossier v Jae Won Yun | 4-6,7-6,6-2 |
| ITF Egypt F33 | 2015/02/22 08:00 | Jae Won Yun v George Von Massow | 6-2,7-6 |