Round: 28 Ground: Hardcourt outdoor
| ITF - Korea F1 | 2017/06/02 02:00 | Daniel Nguyen v Jae Hwan Kim | 6-1,6-2 |
| ITF - Korea F1 | 2017/06/01 03:05 | Daniel Nguyen v Jung-Woong Na | 6-2,6-4 |
| ITF - Korea F1 | 2017/05/31 05:40 | Daniel Nguyen v Jaeyoung Park | 6-3,6-1 |
| Challenger - Shymkent - Qualifikation | 2017/05/22 05:00 | Daniel Nguyen v Evgeny Karlovskiy | 4-6,0-6 |
| Challenger - Shymkent - Qualifikation | 2017/05/21 05:00 | Daniel Nguyen v Denis Matsukevich | 7-5,6-0 |
| Challenger - Busan - Qualifikation | 2017/05/15 03:35 | Austin Krajicek v Daniel Nguyen | 6-1,6-3 |
| Challenger - Busan - Qualifikation | 2017/05/14 05:45 | Ji Hoon Son v Daniel Nguyen | 1-6,5-7 |
| Challenger - Busan - Qualifikation | 2017/05/13 05:10 | Daniel Nguyen v Felix Auger Aliassime | 7-5,6-1 |
| ITF - Korea F1 | 2017/06/02 01:00 | Cheong-Eui Kim v Hong Chung | 6-3,6-7,6-2 |
| ITF - Korea F1 | 2017/06/01 03:45 | Cheong-Eui Kim v Dong-Hak Sin | 6-3,7-5 |
| ITF - Korea F1 | 2017/05/31 01:00 | Cheong-Eui Kim v Jeamoon Lee | 6-1,6-4 |
| Challenger - Busan - Qualifikation | 2017/05/14 02:00 | Cheong-Eui Kim v Lucas Miedler | 3-6,4-6 |
| Challenger - Seoul - Qualifikation | 2017/05/06 05:05 | Cheong-Eui Kim v Makoto Ochi | 6-2,3-6,1-6 |
| Challenger - Gimcheon | 2017/05/01 04:25 | Marco Chiudinelli v Cheong-Eui Kim | 3-6,6-2,6-3 |
| Challenger - Taipei - Qualifikation | 2017/04/16 04:30 | Yu Hsiou Hsu v Cheong-Eui Kim | 6-4,6-1 |
| ITF - Indonesien F2 | 2017/02/16 03:30 | Cheong-Eui Kim v Chan-Yeong Oh | 6-4,4-6,6-7 |