Estádio: Centre Court Round: 54 Ground: Hardcourt outdoor
| ITF - Coreia do Sul F6 | 2018/08/28 02:00 | Yeongseok Jeong v Young-Hoon Jeong | 7-5,7-6 |
| Challenger Gwangju - Qualificação | 2018/08/11 04:45 | Vasko Mladenov v Young-Hoon Jeong | 6-0,6-2 |
| ITF - China F10 - Qualificação | 2018/07/09 04:05 | Young-Hoon Jeong v Hao Wu | 3-6,1-6 |
| ITF - China F10 - Qualificação | 2018/07/08 02:00 | Young-Hoon Jeong v David Barclay | 6-1,6-3 |
| ITF - China F9 | 2018/07/05 03:00 | Hao Wu v Young-Hoon Jeong | 6-7,6-0,6-2 |
| ITF - China F9 | 2018/07/03 09:45 | Bang Shuo Yin v Young-Hoon Jeong | 0-6,2-6 |
| ITF - Coreia F3 - Qualificação | 2018/06/18 01:00 | Young-Hoon Jeong v Geun Jun Kim | 4-6,4-6 |
| ITF - Coreia F3 - Qualificação | 2018/06/17 03:00 | Young-Hoon Jeong v Jae Won Yun | 6-2,6-2 |
| ITF - Tailândia F4 | 2018/09/23 04:00 | Worarin Kumthonkittikul v Hyung-Chan Lim | 7-5,7-5 |
| ITF - Tailândia F4 | 2018/09/22 02:30 | Hyung-Chan Lim v Tonkla Mulada | 6-3,3-6,6-3 |
| ITF - Coreia do Sul F6 | 2018/08/29 04:30 | Chan-Yeong Oh v Hyung-Chan Lim | 6-2,6-2 |
| ITF - Coreia do Sul F6 | 2018/08/27 03:00 | Hyung-Chan Lim v Uisung Park | 6-3,4-6,6-0 |
| ITF - Coreia do Sul F6 | 2018/08/26 02:00 | Dae-Hee Lee v Hyung-Chan Lim | 3-6,2-6 |
| ITF - Coreia do Sul F5 | 2018/08/18 02:00 | Dong Woon Kang v Hyung-Chan Lim | 6-4,6-4 |
| ITF - Coreia F4 | 2018/08/12 02:00 | Hyung-Chan Lim v Seong Woon Yu | 4-6,4-6 |
| ITF - Coreia F3 - Qualificação | 2018/06/17 04:30 | Yu Hsiang Chiu v Hyung-Chan Lim | 4-6,4-6 |