Round: 25 Ground: Hardcourt outdoor
| ITF Japan F5 | 2014/06/05 01:00 | Takuto Niki v Jui-Chen Hung | 6-2,6-4 |
| Davis Cup | 2015/09/20 11:20 | Aisam-Ul-Haq Qureshi v Jui-Chen Hung | 7-6,4-6,6-4,6-3 |
| Davis Cup | 2015/09/18 07:00 | Aqeel Khan v Jui-Chen Hung | 5-7,6-4,6-1,6-4 |
| ITF China F13 | 2015/08/13 02:00 | Jui-Chen Hung v Masato Shiga | 7-6,6-7,1-6 |
| ITF China F12 | 2015/08/03 10:20 | Aoxiong Wang v Jui-Chen Hung | 6-3,6-3 |
| ITF China F11 | 2015/07/21 03:40 | Zhe Li v Jui-Chen Hung | 6-0,6-2 |
| Davis Cup | 2015/07/17 03:00 | Jui-Chen Hung v Jeson Patrombon | 6-2,6-2,6-1 |
| ITF China F9 | 2015/07/03 02:00 | Jui-Chen Hung v Di Wu | 6-7,2-6 |
| ITF China F9 | 2015/07/02 02:00 | Jui-Chen Hung v Aoxiong Wang | 6-2,6-3 |
| Challenger Aptos | 2015/08/11 17:00 | Kyle Edmund v Takuto Niki | 6-1,6-2 |
| Challenger Aptos Qual | 2015/08/10 19:40 | Tennys Sandgren v Takuto Niki | 6-3,7-5 |
| ATP Washington Qual | 2015/08/01 15:50 | Sekou Bangoura v Takuto Niki | 3-6,7-6,6-7 |
| ITF Japan F8 | 2015/06/25 01:00 | Renta Tokuda v Takuto Niki | 2-6,7-6,6-3 |
| ITF Japan F8 | 2015/06/24 03:45 | Woong-Sun Jun v Takuto Niki | 2-6,6-2,4-6 |
| ITF Japan F6 | 2015/06/13 01:30 | Takuto Niki v Toshihide Matsui | 3-6,2-6 |
| ITF Japan F6 | 2015/06/12 05:30 | Takuto Niki v Masaki Sasai | 6-2,6-1 |
| ITF Japan F6 | 2015/06/11 02:55 | Takuto Niki v Keisuke Watanuki | 6-7,7-6,6-4 |