| 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 |
| Challenger Gimcheon | 2017/05/01 04:25 | Brydan Klein v Yunseong Chung | 6-3,6-4 |
| ITF Korea F3 | 2017/06/14 01:00 | Jae Hwan Kim v Daniel Yoo | 5-7,5-7 |
| ITF Korea F2 | 2017/06/07 03:50 | Min-Kyu Song v Daniel Yoo | 3-6,7-6,6-4 |
| ITF Korea F1 | 2017/05/31 01:00 | Daniel Yoo v Jung-Woong Na | 3-6,3-6 |
| ITF USA F5 | 2017/01/21 19:00 | Daniel Yoo v Fabiano De Paula | 6-1,3-6,6-7 |
| ITF USA F5 | 2017/01/20 21:00 | Dustin Goldenberg v Daniel Yoo | 0-6,1-6 |
| ITF USA F4 | 2017/01/14 17:00 | Grayson M. Goldin v Daniel Yoo | 6-1,6-4 |
| ITF USA F4 | 2017/01/13 23:00 | Maksim Bogdanovich v Daniel Yoo | 1-6,2-6 |
| ITF USA F3 | 2017/01/07 17:30 | Daniel Yoo v Gabriel Decamps | 6-3,3-6,3-6 |