Stadium: Court 1 Round: 25
| ITF Korea F2 | 2017/06/08 02:40 | Chan-Yeong Oh v Hong Chung | 7-6,3-6,6-3 |
| ITF Korea F2 | 2017/06/08 02:30 | Chan-Yeong Oh v Hong Chung | 7-6,3-6,5-3 |
| 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 Thailand F11 | 2017/12/05 03:30 | Hong Chung v Yan Bai | 2-6,3-6 |
| ITF Korea F5 | 2017/06/30 02:00 | Hong Chung v Seong-Gook Oh | 6-1,3-6,0-6 |
| ITF Korea F5 | 2017/06/29 04:05 | Hong Chung v Hyun-Woo Nam | 6-0,6-2 |
| ITF Korea F2 | 2018/06/11 03:30 | Chan-Yeong Oh v Sang Yeop Kim | 6-3,6-3 |
| ITF Korea F1 | 2018/06/07 01:00 | Chan-Yeong Oh v Tae-Woo Lee | 4-6,2-6 |
| ITF Korea F1 | 2018/06/05 01:00 | Chan-Yeong Oh v Ku Keon Kang | 6-4,6-4 |
| Challenger - Busan | 2018/05/14 06:20 | Kaichi Uchida v Chan-Yeong Oh | 6-1,6-4 |
| ITF Hong Kong F6 | 2018/01/03 03:20 | Harri Heliovaara v Chan-Yeong Oh | 6-1,6-3 |
| ITF Hong Kong F6 | 2018/01/02 03:55 | Chan-Yeong Oh v Anthony Jackie Tang | 7-5,6-4 |
| ITF Hong Kong F5 | 2017/12/26 05:45 | Tung-Lin Wu v Chan-Yeong Oh | 6-2,7-6 |
| ITF Hong Kong F5 | 2017/12/24 02:00 | Chan-Yeong Oh v Yuto Sakai | 6-3,6-3 |