Stadium: Court 2 Round: 45 Ground: Hardcourt outdoor
| ITF China F7 | 2018/06/01 06:15 | Xin Gao v Yunseong Chung | 6-0,6-7,6-3 |
| ITF China F7 | 2018/05/31 04:30 | Chien Hsun Lo 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 | Matthew Ebden 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 Ben Patael | 6-3,6-2 |
| Challenger Gimcheon | 2018/05/08 04:05 | Jordan Thompson v Yunseong Chung | 6-4,6-1 |
| Challenger Surbiton Qual | 2018/06/02 13:20 | N. Vijay Sundar Prashanth v Mark Whitehouse | 4-6,4-6 |
| Challenger Samarkand Qual | 2018/05/13 11:00 | Khumoyun Sultanov v N. Vijay Sundar Prashanth | 6-4,6-3 |
| Challenger Samarkand Qual | 2018/05/12 06:35 | Pavel Tsoy v N. Vijay Sundar Prashanth | 4-6,1-6 |
| Challenger Karshi Qual | 2018/05/07 05:30 | Shuichi Sekiguchi v N. Vijay Sundar Prashanth | 6-7,6-4,7-6 |
| Challenger Karshi Qual | 2018/05/06 06:00 | Oleksandr Bielinskyi v N. Vijay Sundar Prashanth | 2-6,2-6 |
| Challenger Karshi Qual | 2018/05/05 07:55 | Timur Khabibulin v N. Vijay Sundar Prashanth | 7-5,3-6,0-6 |
| ITF Uzbekistan F2 | 2018/04/24 11:45 | Nikola Cacic v N. Vijay Sundar Prashanth | 7-6,2-6,6-4 |
| ITF India F4 | 2018/03/24 04:30 | Arjun Kadhe v N. Vijay Sundar Prashanth | 3-6,3-6 |