| ITF Korea F3 | 2017/06/15 01:00 | Yunseong Chung v Daniel Yoo | 5-7,4-6 |
| ITF Korea F3 | 2017/06/14 01:00 | Yunseong Chung v Ji Hoon Son | 7-6,6-4 |
| ITF Korea F2 | 2017/06/08 01:00 | Yunseong Chung v Ji Hoon Son | 6-7,6-0,6-7 |
| ITF Korea F2 | 2017/06/07 07:25 | Yunseong Chung v Tae-Woo Lee | 6-2,6-7,6-1 |
| ITF Korea F1 | 2017/05/31 01:00 | Dylan Seong Kwan Kim v Yunseong Chung | 5-7,6-3,6-4 |
| Challenger Busan Qual | 2017/05/13 05:50 | Yunseong Chung v Seong-Gook Oh | 6-4,6-7,3-6 |
| 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 |
| ITF Korea F3 | 2017/06/14 01:00 | Cheong-Eui Kim v Dong-Kyu Lee | 1-6,6-4,6-3 |
| ITF Korea F3 Qual | 2017/06/12 03:00 | Dong-Kyu Lee v Dukyoung Kim | 6-4,6-1 |
| ITF Korea F3 Qual | 2017/06/10 02:00 | Dong-Kyu Lee v Gwang Hyeon Cho | 6-3,4-6,6-0 |
| ITF Korea F2 | 2017/06/07 02:35 | Yong-Kyu Lim v Dong-Kyu Lee | 7-6,6-3 |
| ITF Korea F2 Qual | 2017/06/05 03:00 | Dong-Kyu Lee v Jaeyoung Park | 6-2,6-2 |
| ITF Korea F2 Qual | 2017/06/04 04:30 | Dong-Kyu Lee v Yeongseok Jeong | 6-4,6-1 |
| ITF Korea F1 | 2017/05/31 01:00 | Dong-Kyu Lee v Seong Chan Hong | 1-6,6-4,4-6 |
| ITF Korea F1 Qual | 2017/05/29 03:40 | Dong-Kyu Lee v Donghwi Shin | 6-3,6-1 |