Round: 25 Ground: Hardcourt outdoor
| Challenger - Kyoto - Qualifikation | 2017/02/19 01:00 | Shuichi Sekiguchi v Yunosuke Tanaka | 6-0,6-4 |
| Challenger - Kyoto - Qualifikation | 2017/02/18 02:35 | Sota Fujii v Yunosuke Tanaka | 6-3,3-6,6-7 |
| ITF - Japan F1 | 2017/03/12 02:00 | Yusuke Takahashi v Takuto Niki | 7-5,6-3 |
| ITF - Japan F1 | 2017/03/11 01:00 | Hiroyasu Ehara v Takuto Niki | 2-6,1-6 |
| ITF - Japan F1 | 2017/03/10 01:00 | Kaito Itsusaki v Takuto Niki | 2-6,4-6 |
| ITF - Japan F1 | 2017/03/09 01:00 | Gengo Kikuchi v Takuto Niki | 0-6,4-6 |
| ITF - Japan F1 | 2017/03/08 02:30 | Shinta Fujii v Takuto Niki | 6-7,2-6 |
| Challenger - Yokohama | 2017/03/01 01:00 | Andrew Whittington v Takuto Niki | 6-4,7-6 |
| Challenger - Yokohama | 2017/02/28 02:20 | Takuto Niki v Masato Shiga | 6-1,6-1 |
| Challenger - Yokohama - Qualifikation | 2017/02/27 01:00 | Alex Bolt v Takuto Niki | 2-6,4-6 |