| ITF Korea F5 | 2017/07/01 05:50 | Seong-Gook Oh v Tae-Woo Lee | 2-6,7-5,3-6 |
| ITF Korea F5 | 2017/06/30 02:00 | Hong Chung v Seong-Gook Oh | 6-1,3-6,0-6 |
| ITF Korea F5 | 2017/06/29 01:30 | Seong-Gook Oh v Yong-Kyu Lim | 6-4,6-4 |
| ITF Korea F5 | 2017/06/28 06:15 | Ji Hoon Son v Seong-Gook Oh | 5-7,1-6 |
| ITF Korea F5 | 2017/06/27 01:30 | Seong-Gook Oh v Woo Hyeok Jang | 6-4,6-3 |
| ITF Korea F4 | 2017/06/22 04:05 | Yunseong Chung v Seong-Gook Oh | 6-2,6-2 |
| ITF Korea F4 | 2017/06/20 02:55 | Hyun-Woo Nam v Seong-Gook Oh | 2-6,2-6 |
| ITF Korea F4 | 2017/06/19 01:00 | Seong-Gook Oh v Hyeong Don Kim | 6-3,6-1 |
| Challenger Jinan | 2017/08/07 02:40 | Yuya Kibi v Duckhee Lee | 2-6,2-6 |
| Challenger Chengdu | 2017/08/01 02:00 | Yuya Kibi v Nikola Milojevic | 3-6,3-6 |
| Challenger Astana | 2017/07/18 05:00 | Cem Ilkel v Yuya Kibi | 6-4,6-4 |
| Challenger Fergana | 2017/06/20 11:00 | Blaz Kavcic v Yuya Kibi | 6-7,6-0,6-0 |
| Challenger Nottingham Qual | 2017/06/12 10:00 | Sam Groth v Yuya Kibi | 6-1,6-0 |
| Challenger Nottingham Qual | 2017/06/11 16:05 | Yuya Kibi v Roberto Quiroz | 7-6,6-2 |
| Challenger Nottingham Qual | 2017/06/10 17:45 | Niklas Johansson v Yuya Kibi | 7-6,2-6,3-6 |
| Challenger Surbiton Qual | 2017/06/04 12:05 | Yuya Kibi v Marc Polmans | 4-6,1-6 |