Round: 62 Ground: Hardcourt outdoor
| ITF Korea F3 Qual | 2017/06/10 03:00 | Seong-Gook Oh v In Kyo Jeong | 6-3,6-4 |
| ITF Korea F2 Qual | 2017/06/03 03:00 | Seong-Gook Oh v Jun Sang Park | 4-6,2-6 |
| ITF Korea F1 Qual | 2017/05/29 04:20 | Seong-Gook Oh v Woo Hyeok Jang | 2-6,3-6 |
| ITF Korea F1 Qual | 2017/05/28 06:30 | Seong-Gook Oh v Woo-Ram Kim | 6-1,6-4 |
| Challenger Busan Qual | 2017/05/14 03:50 | Takuto Niki v Seong-Gook Oh | 6-4,6-3 |
| Challenger Busan Qual | 2017/05/13 05:50 | Yunseong Chung v Seong-Gook Oh | 6-4,6-7,3-6 |
| ITF Korea F8 | 2016/09/03 01:00 | Seon Yong Han v Seong-Gook Oh | 6-4,6-1 |
| ITF Japan F7 Qual | 2016/06/04 01:00 | Yuga Tashiro v Seong-Gook Oh | 6-2,6-2 |
| ITF Korea F2 Qual | 2017/06/04 04:30 | Byeonghun Kim v A-Ram Kim | 4-6,6-2,6-4 |
| ITF Korea F2 Qual | 2017/06/03 02:00 | A-Ram Kim v Donghwi Shin | 6-2,6-3 |
| ITF Korea F1 Qual | 2017/05/29 04:45 | A-Ram Kim v Sung Jun Park | 2-6,1-6 |
| ITF Korea F1 Qual | 2017/05/28 03:30 | Ji-Ha Kim v A-Ram Kim | 0-6,6-3,3-6 |
| ITF Korea F1 Qual | 2017/05/27 03:30 | Young Min Joo v A-Ram Kim | 4-6,6-7 |
| ITF Korea F8 | 2016/09/04 02:00 | Seungri Choi v A-Ram Kim | 6-4,4-6,6-3 |
| ITF Korea F8 | 2016/08/29 02:30 | Woong-Sun Jun v A-Ram Kim | 6-4,3-6,6-1 |
| ITF Korea F8 | 2016/08/22 01:30 | A-Ram Kim v Sora Fukuda | 2-6,1-6 |