| ITF Korea F1 Qual | 2017/05/29 04:20 | Oh, Seong-Gook v Jang, Woo Hyeok | 2-6,3-6 |
| ITF Korea F4 | 2017/06/22 04:05 | Yunseong Chung v Oh, Seong-Gook | 6-2,6-2 |
| ITF Korea F4 | 2017/06/20 02:55 | Nam, Hyun Woo v Oh, Seong-Gook | 2-6,2-6 |
| ITF Korea F4 | 2017/06/19 01:00 | Oh, Seong-Gook v Kim, Hyeong Don | 6-3,6-1 |
| ITF Korea F4 | 2017/06/18 02:00 | Oh, Seong-Gook v Kang, Dong Woon | 7-5,6-4 |
| ITF Korea F3 | 2017/06/14 01:00 | Oh, Seong-Gook v Lee, Tae-Woo | 2-6,4-6 |
| Korea F3, Singles Qualifying | 2017/06/12 03:00 | Oh, Seong-Gook v Park, Jun Sang | 7-5,7-6 |
| Korea F3, Singles Qualifying | 2017/06/11 04:30 | Oh, Seong-Gook v Kim, A-Ram | 6-3,6-1 |
| Korea F3, Singles Qualifying | 2017/06/10 03:00 | Oh, Seong-Gook v Jeong, In Kyo | 6-3,6-4 |
| ITF Korea F4 | 2017/06/17 02:00 | Jang, Woo Hyeok v Han, Seong Jae | 2-6,6-3,3-6 |
| ITF Korea F2 Qual | 2017/06/05 03:00 | Na, Jung-Woong v Jang, Woo Hyeok | 6-4,6-1 |
| ITF Korea F2 Qual | 2017/06/04 03:00 | Lee, Woo Young v Jang, Woo Hyeok | 3-6,2-6 |
| ITF Korea F2 Qual | 2017/06/03 02:00 | Lee, Min Hyun v Jang, Woo Hyeok | 3-6,4-6 |
| ITF Korea F1 | 2017/05/31 06:40 | Oh, Chan-Yeong v Jang, Woo Hyeok | 6-2,4-6,6-1 |
| ITF Korea F1 Qual | 2017/05/29 04:20 | Oh, Seong-Gook v Jang, Woo Hyeok | 2-6,3-6 |
| ITF Korea F1 Qual | 2017/05/28 06:30 | Jang, Woo Hyeok v Lim, Hyung-Chan | 6-2,6-3 |
| ITF Korea F8 | 2016/08/29 01:30 | Jang, Woo Hyeok v Jeamoon Lee | 6-7,5-7 |