Round: 25 Ground: Hardcourt outdoor
| ITF China F12 | 2017/07/10 07:05 | Jui-Chen Hung v Dzmitry Zhyrmont | 6-7,3-6 |
| ITF Chinese Taipei F2 | 2017/06/20 01:30 | Shinta Fujii v Jui-Chen Hung | 6-3,6-4 |
| ITF Korea F3 | 2017/06/15 02:20 | Jui-Chen Hung v Yong-Kyu Lim | 2-6,0-6 |
| ITF Korea F3 | 2017/06/13 01:00 | Jui-Chen Hung v Hyun-Woo Nam | 7-6,6-1 |
| ITF Korea F2 | 2017/06/07 04:50 | Jui-Chen Hung v Dong-Hak Sin | 6-2,4-6,5-7 |
| ITF Korea F1 | 2017/05/31 06:50 | Jui-Chen Hung v Dae-Hee Lee | 4-6,6-7 |
| ITF Singapore F1 | 2017/05/25 04:05 | N. Vijay Sundar Prashanth v Jui-Chen Hung | 6-1,6-3 |
| ITF China F7 | 2017/05/16 05:30 | Jui-Chen Hung v Masaki Osafune | 2-6,6-1,2-6 |
| ITF Guam F1 | 2017/06/21 02:30 | Takao Suzuki v Issei Okamura | 7-5,6-4 |
| ITF Japan F8 | 2017/06/13 01:30 | Shunrou Takeshima v Issei Okamura | 6-3,7-5 |
| ITF Japan F7 | 2017/06/07 03:35 | Issei Okamura v Haru Inoue | 6-7,2-6 |
| ITF Japan F6 | 2017/05/30 03:55 | Kento Takeuchi v Issei Okamura | 7-6,6-3 |
| ITF Singapore F1 | 2017/05/25 02:00 | Issei Okamura v Kazuki Nishiwaki | 6-7,1-6 |
| ITF China F7 | 2017/05/16 07:00 | Issei Okamura v Yusuke Takahashi | 7-5,2-6,4-6 |
| ITF China F6 | 2017/05/10 06:05 | Dayne Kelly v Issei Okamura | 6-4,6-3 |
| ITF China F6 | 2017/05/08 05:30 | Ruikai Wang v Issei Okamura | 3-6,1-6 |