Round: 25 Ground: Hardcourt outdoor
| ITF - Thailand F4 | 2016/12/13 05:30 | Pol Wattanakul v Dylan Seong Kwan Kim | 6-3,6-1 |
| ITF Korea F8 | 2016/09/08 03:00 | Ji Sung Nam v Dylan Seong Kwan Kim | 6-4,6-0 |
| ITF Korea F8 | 2016/09/07 03:50 | Sanhui Shin v Dylan Seong Kwan Kim | 2-6,4-6 |
| ITF Korea F8 | 2016/09/06 01:30 | Dylan Seong Kwan Kim v Sho Katayama | 6-0,6-1 |
| ITF Korea F7 | 2016/08/30 04:35 | Dylan Seong Kwan Kim v Min Hyeok Cho | 3-6,3-6 |
| ITF - Korea F1 | 2016/06/18 02:00 | Yong-Kyu Lim v Dylan Seong Kwan Kim | 7-5,6-1 |
| ITF - Korea F1 | 2016/06/17 01:00 | Dylan Seong Kwan Kim v Oh-Hee Kwon | 6-4,6-3 |
| ITF - Korea F1 | 2016/06/16 01:00 | Jung-Woong Na v Dylan Seong Kwan Kim | 4-6,6-3,6-7 |
| Challenger - Busan - Qualifikation | 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 |
| Challenger - Gimcheon | 2017/05/01 04:25 | Brydan Klein v Yunseong Chung | 6-3,6-4 |
| Challenger - Taipei - Qualifikation | 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 - Qualifikation | 2017/02/25 04:50 | Yunseong Chung v Soonwoo Kwon | 6-7,5-7 |
| Challenger - Kyoto - Qualifikation | 2017/02/18 05:25 | Yunseong Chung v Takuto Niki | 2-6,6-7 |