Stadium: Court 2 Round: 27
| 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 |
| ITF Hong Kong F5 | 2017/12/23 02:00 | Chan-Yeong Oh v Alec Adamson | 7-5,6-3 |
| ITF Hong Kong F4 | 2017/12/18 02:00 | Shao-Fan Liu v Chan-Yeong Oh | 7-6,6-2 |
| ITF Korea F4 | 2017/06/22 02:00 | Chan-Yeong Oh v Min-Kyu Song | 5-7,2-6 |
| ITF Korea F4 | 2017/06/20 03:40 | Chan-Yeong Oh v Tae-Woo Lee | 7-6,7-6 |
| ITF Spain F4 | 2018/02/08 11:00 | Ivan Gakhov v Yunseong Chung | 6-4,6-4 |
| ITF Spain F3 | 2018/01/30 13:40 | Daniel Gimeno-Traver v Yunseong Chung | 6-4,6-1 |
| ITF Spain F2 | 2018/01/27 10:00 | Yunseong Chung v Daniel Munoz-De La Nava | 3-6,4-6 |
| ITF Spain F2 | 2018/01/26 13:00 | Joao Monteiro v Yunseong Chung | 7-6,5-7,3-6 |
| ITF Spain F2 | 2018/01/25 09:00 | Yunseong Chung v Evgeny Tyurnev | 6-4,2-6,6-3 |
| ITF Spain F2 | 2018/01/23 10:35 | Yunseong Chung v Nico Mertens | 6-4,6-3 |
| ITF Spain F1 | 2018/01/20 11:50 | Daniel Munoz-De La Nava v Yunseong Chung | 6-4,6-3 |
| ITF Spain F1 | 2018/01/19 10:00 | Germain Gigounon v Yunseong Chung | 5-7,3-6 |