| Challenger Gwangju | 2018/08/14 06:30 | Duckhee Lee v Hong Chung | 7-6,6-2 |
| ITF Korea F3 | 2018/06/19 06:35 | Hong Chung v Shintaro Imai | 6-7,6-3,1-6 |
| 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 Korea F5 | 2018/08/19 02:00 | Jae Won Yun v Donghwi Shin | 6-2,6-2 |
| ITF Korea F5 | 2018/08/18 02:00 | Geon Ju Shin v Jae Won Yun | 4-6,4-6 |
| ITF Korea F4 | 2018/08/12 02:00 | Jae Won Yun v Seoung Hun Lee | 6-3,2-6,6-7 |
| ITF Korea F4 | 2018/08/11 01:00 | Jae Won Yun v Jaeyoung Park | 6-1,6-3 |
| 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 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 |