| ITF Korea F1 Qual | 2017/05/29 04:20 | Сон-Гук О v Jang, Woo Hyeok | 2-6,3-6 |
| ITF Korea F4 | 2017/06/22 04:05 | Юнсеонг Чон v Сон-Гук О | 6-2,6-2 |
| ITF Korea F4 | 2017/06/20 02:55 | Хен Во Нам v Сон-Гук О | 2-6,2-6 |
| ITF Korea F4 | 2017/06/19 01:00 | Сон-Гук О v Хён Дон Ким | 6-3,6-1 |
| ITF Korea F4 | 2017/06/18 02:00 | Сон-Гук О v Kang, Dong Woon | 7-5,6-4 |
| ITF Korea F3 | 2017/06/14 01:00 | Сон-Гук О v Тхэ-Ву Ли | 2-6,4-6 |
| Korea F3, Singles Qualifying | 2017/06/12 03:00 | Сон-Гук О v Park, Jun Sang | 7-5,7-6 |
| Korea F3, Singles Qualifying | 2017/06/11 04:30 | Сон-Гук О v Ким, А-Рам | 6-3,6-1 |
| Korea F3, Singles Qualifying | 2017/06/10 03:00 | Сон-Гук О v Jeong, In Kyo | 6-3,6-4 |
| ITF Korea F4 | 2017/06/17 02:00 | Jang, Woo Hyeok v Хан, Сеонг Жае | 2-6,6-3,3-6 |
| ITF Korea F2 Qual | 2017/06/05 03:00 | На, Юнг-Воонг 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 |
| Korea F1, Singles | 2017/05/31 06:40 | Чань-Ёон О v Jang, Woo Hyeok | 6-2,4-6,6-1 |
| ITF Korea F1 Qual | 2017/05/29 04:20 | Сон-Гук О 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 Джемун Ли | 6-7,5-7 |