| Challenger Seoul | 2017/05/10 03:30 | Yunseong Chung v Hiroki Moriya | 6-4,6-7,3-6 |
| Challenger Seoul | 2017/05/08 05:30 | Yen-Hsun Lu v Yunseong Chung | 3-6,4-6 |
| Challenger Gimcheon | 2017/05/01 04:25 | Brydan Klein v Yunseong Chung | 6-3,6-4 |
| Challenger Taipei Qual | 2017/04/16 06:50 | Toshihide Matsui v Yunseong Chung | 7-6,6-4 |
| ITF Japan F1 | 2017/03/07 02:35 | Yunseong Chung v Liang-Chi Huang | 3-6,6-7 |
| Challenger Yokohama Qual | 2017/02/25 04:50 | Yunseong Chung v Soonwoo Kwon | 6-7,5-7 |
| Challenger Kyoto Qual | 2017/02/18 05:25 | Yunseong Chung v Takuto Niki | 2-6,6-7 |
| ITF Thailand F6 | 2016/12/30 03:00 | Dmitry Popko v Yunseong Chung | 6-4,4-6,6-1 |
| Challenger Seoul Qual | 2017/05/06 01:00 | Ji Hoon Son v Luke Saville | 3-6,4-6 |
| Challenger Gimcheon Qual | 2017/04/29 01:00 | Max Purcell v Ji Hoon Son | 6-1,6-3 |
| ITF Korea F8 | 2016/09/06 04:30 | Jeamoon Lee v Ji Hoon Son | 6-3,6-4 |
| ITF Korea F8 | 2016/08/23 01:30 | Ji Hoon Son v Yong-Kyu Lim | 1-6,4-6 |
| ITF Korea F1 | 2016/06/15 05:35 | Min Hyeok Cho v Ji Hoon Son | 6-1,6-0 |
| ITF Korea F1 | 2015/05/19 03:00 | Ji Hoon Son v Dong-Kyu Lee | 6-1,4-6,2-6 |