Stadium: Court 4 Round: 24 Ground: Hardcourt outdoor
| Challenger Shenzhen 2 Qual | 2017/10/28 07:35 | Tsung-Hua Yang v Yunseong Chung | 6-3,6-2 |
| Challenger Kaohsiung | 2017/10/04 09:40 | Tsung-Hua Yang v Yunseong Chung | 6-3,6-2 |
| Challenger Gwangju Qual | 2017/09/17 01:30 | Tsung-Hua Yang v Yunseong Chung | 7-6,7-5 |
| ITF China F2 | 2015/04/09 02:00 | Yunseong Chung v Tsung-Hua Yang | 3-6,2-6 |
| Challenger Bangkok 1A | 2019/02/19 03:00 | Gianluca Mager v Yunseong Chung | 6-4,6-4 |
| Challenger Bangkok 1A | 2019/02/18 05:20 | Yunseong Chung v Pedro Cachin | 6-2,6-1 |
| Challenger Launceston | 2019/01/30 02:40 | Yunseong Chung v Lorenzo Giustino | 3-6,7-6,3-6 |
| Challenger Launceston | 2019/01/28 05:55 | Yunseong Chung v Rubin Statham | 6-4,6-3 |
| Challenger Burnie | 2019/01/21 23:00 | Yunseong Chung v Lorenzo Giustino | 2-6,3-6 |
| Challenger Burnie | 2019/01/21 00:30 | Jordi Samper-Montana v Yunseong Chung | 5-7,1-6 |
| Challenger Canberra | 2019/01/07 00:40 | Yunseong Chung v Brydan Klein | 6-7,7-6,0-6 |
| Challenger Noumea | 2019/01/01 04:25 | Yunseong Chung v Jurij Rodionov | 4-6,1-6 |
| Challenger Bangkok 1A | 2019/02/18 10:10 | Tsung-Hua Yang v Saketh Myneni | 3-6,5-7 |
| Challenger Bangkok | 2019/02/12 04:10 | Tsung-Hua Yang v Janko Tipsarevic | 2-6,6-4,4-6 |
| Challenger Chennai | 2019/02/05 07:30 | Andrew Harris v Tsung-Hua Yang | 6-2,6-1 |
| Challenger Launceston | 2019/01/31 00:35 | Tsung-Hua Yang v Tristan Lamasine | 3-6,2-6 |
| Challenger Launceston | 2019/01/29 02:00 | Guilherme Clezar v Tsung-Hua Yang | 5-7,6-7 |
| Challenger Launceston | 2019/01/28 00:25 | Aleksandar Vukic v Tsung-Hua Yang | 3-6,2-6 |
| Challenger Burnie | 2019/01/21 01:25 | Sebastian Fanselow v Tsung-Hua Yang | 6-4,6-3 |
| Challenger Da Nang | 2019/01/10 06:00 | Tsung-Hua Yang v Thai-Son Kwiatkowski | 4-6,6-7 |