Stadium: Court 8 Round: 27 Ground: Hardcourt outdoor
| ITF Japan F3 | 2016/03/23 04:15 | Yunseong Chung v Gao, Xin | 4-6,0-6 |
| ITF China F2 Qual | 2015/04/14 02:00 | Gao, Xin v Yunseong Chung | 6-3,4-6,3-6 |
| ITF China F2 | 2015/04/07 05:00 | Gao, Xin v Yunseong Chung | 6-4,3-6,1-6 |
| ITF China F7 | 2018/05/31 03:50 | Gao, Xin v Aoran Wang | 6-0,6-3 |
| ITF China F7 | 2018/05/29 02:00 | Gao, Xin v Purcell, Rhett | 6-4,6-3 |
| ITF China F6 | 2018/05/17 02:00 | Gao, Xin v Fajing Sun | 3-6,3-6 |
| ITF China F6 | 2018/05/15 03:20 | Gao, Xin v Han, Cheng | 6-2,6-2 |
| ITF China F5 | 2018/05/10 06:15 | Gao, Xin v Kaito Uesugi | 7-6,5-7,3-6 |
| ITF China F5 | 2018/05/08 02:00 | Gao, Xin v Aoran Wang | 6-2,6-3 |
| ITF China F4 | 2018/05/01 02:40 | Gao, Xin v Shirafuji, Naru | 7-5,6-4 |
| Nanchang, China | 2018/04/19 04:30 | Gao, Xin v Quentin Halys | 2-6,1-6 |
| ITF China F7 | 2018/05/31 04:30 | Lo, Chien Hsun v Yunseong Chung | 2-6,7-5,5-7 |
| ITF China F7 | 2018/05/29 05:30 | Zhenxiong Dong v Yunseong Chung | 2-6,1-6 |
| Challenger - Busan | 2018/05/15 03:25 | Ebden, Matthew v Yunseong Chung | 6-3,3-6,6-3 |
| Challenger Busan Qual | 2018/05/14 02:00 | Yunseong Chung v Luke Saville | 6-7,7-6,6-0 |
| Challenger Busan Qual | 2018/05/13 04:00 | Jason Kubler v Yunseong Chung | 3-6,2-6 |
| Challenger Busan Qual | 2018/05/12 02:55 | Yunseong Chung v Patael, Ben | 6-3,6-2 |
| Challenger Gimcheon | 2018/05/08 04:05 | Jordan Thompson v Yunseong Chung | 6-4,6-1 |
| Challenger Seoul | 2018/05/01 06:00 | Lloyd Harris v Yunseong Chung | 5-7,6-3,6-0 |