| ITF Korea F1 Qual | 2016/06/11 01:00 | Geon Ju Shin v Dong-Hak Sin | 7-6,4-6,4-6 |
| ITF Korea F4 | 2017/06/20 01:00 | Dong-Hak Sin v Min Hyeok Cho | 4-6,0-6 |
| ITF Korea F4 | 2017/06/19 01:00 | Dong-Hak Sin v Byeonghun Kim | 6-3,6-1 |
| ITF Korea F4 | 2017/06/18 01:00 | Dong-Hak Sin v Jun Su Kim | 6-3,6-3 |
| ITF Korea F3 Qual | 2017/06/10 05:00 | Young-Hoon Jeong v Dong-Hak Sin | 6-2,6-1 |
| ITF Korea F2 | 2017/06/09 02:00 | Dong-Hak Sin v Cheong-Eui Kim | 4-6,3-6 |
| ITF Korea F2 | 2017/06/08 03:05 | Dylan Seong Kwan Kim v Dong-Hak Sin | 4-6,7-6,5-7 |
| ITF Korea F2 | 2017/06/07 04:50 | Jui-Chen Hung v Dong-Hak Sin | 6-2,4-6,5-7 |
| ITF Korea F2 Qual | 2017/06/05 03:00 | Jun Sang Park v Dong-Hak Sin | 5-7,6-2,0-6 |
| ITF Korea F5 | 2017/06/25 01:00 | Geon Ju Shin v Jae Won Yun | 6-4,6-3 |
| ITF Korea F4 | 2017/06/19 01:00 | Sang Yeop Kim v Geon Ju Shin | 6-3,6-4 |
| ITF Korea F4 | 2017/06/18 01:00 | Ki Bum Kim v Geon Ju Shin | 1-6,1-6 |
| ITF Korea F3 Qual | 2017/06/12 03:00 | Young-Hoon Jeong v Geon Ju Shin | 6-0,6-0 |
| ITF Korea F3 Qual | 2017/06/11 04:30 | Hyeon il Jung v Geon Ju Shin | 2-6,6-4,2-6 |
| ITF Korea F2 Qual | 2017/06/03 02:00 | Byeonghun Kim v Geon Ju Shin | 4-6,6-1,6-0 |
| ITF Korea F1 Qual | 2017/05/29 01:00 | Jaeyoung Park v Geon Ju Shin | 6-3,6-4 |
| ITF Korea F1 Qual | 2017/05/28 01:00 | Geon Ju Shin v Sung Hun Kim | 6-2,6-2 |