Round: 29 Ground: Hardcourt outdoor
| ITF Japan F1 | 2017/03/12 02:00 | Yusuke Takahashi v Niki, Takuto | 7-5,6-3 |
| ITF Japan F4 | 2017/04/01 01:00 | Niki, Takuto v Kaito Uesugi | 6-3,6-3 |
| ITF Japan F4 | 2017/03/31 02:40 | Niki, Takuto v Renta Tokuda | 6-2,6-7,7-5 |
| ITF Japan F4 | 2017/03/30 03:15 | Niki, Takuto v Sho Shimabukuro | 6-7,6-3,7-6 |
| ITF Japan F4 | 2017/03/29 03:40 | Niki, Takuto v Takeshima, Shunrou | 6-2,7-5 |
| ITF Japan F3 | 2017/03/24 03:10 | Niki, Takuto v Nam Hoang Ly | 4-6,6-4,6-0 |
| ITF Japan F3 | 2017/03/23 01:30 | Wishaya Trongcharoenchaikul v Niki, Takuto | 7-6,1-6,4-6 |
| ITF Japan F3 | 2017/03/22 07:00 | Chung, Hong v Niki, Takuto | 3-6,5-7 |
| ITF Japan F3 | 2017/03/22 02:15 | Yuta Shimizu v Niki, Takuto | 1-6,6-3,1-6 |
| ITF Japan F4 | 2017/04/01 01:00 | Hong, Seong Chan v Yusuke Takahashi | 4-6,5-7 |
| ITF Japan F4 | 2017/03/31 01:00 | Ryota Tanuma v Yusuke Takahashi | 3-6,2-6 |
| ITF Japan F4 | 2017/03/30 03:00 | Ito, Yuichi v Yusuke Takahashi | 3-6,3-6 |
| ITF Japan F4 | 2017/03/29 05:40 | Naoki Tajima v Yusuke Takahashi | 6-3,1-6,4-6 |
| ITF Japan F3 | 2017/03/23 01:30 | Yusuke Takahashi v Jeamoon Lee | 3-6,1-6 |
| ITF Japan F3 | 2017/03/22 04:15 | Yusuke Takahashi v Kaito Uesugi | 6-4,6-1 |
| ITF Japan F3 | 2017/03/22 00:30 | Yusuke Takahashi v Kikuchi, Gengo | 6-3,6-1 |
| ITF Japan F2 | 2017/03/19 02:00 | Yusuke Takahashi v Max Purcell | 5-7,6-7 |