Round: 28 Ground: Hardcourt outdoor
| ITF Japan F4 | 2017/03/31 02:40 | Takuto Niki v Renta Tokuda | 6-2,6-7,7-5 |
| ITF Japan F4 | 2017/03/30 03:15 | Takuto Niki v Sho Shimabukuro | 6-7,6-3,7-6 |
| ITF Japan F4 | 2017/03/29 03:40 | Takuto Niki v Shunrou Takeshima | 6-2,7-5 |
| ITF Japan F3 | 2017/03/24 03:10 | Takuto Niki v Nam Hoang Ly | 4-6,6-4,6-0 |
| ITF Japan F3 | 2017/03/23 01:30 | Wishaya Trongcharoenchaikul v Takuto Niki | 7-6,1-6,4-6 |
| ITF Japan F3 | 2017/03/22 07:00 | Hong Chung v Takuto Niki | 3-6,5-7 |
| ITF Japan F3 | 2017/03/22 02:15 | Yuta Shimizu v Takuto Niki | 1-6,6-3,1-6 |
| ITF Japan F2 | 2017/03/16 04:05 | Sho Katayama v Takuto Niki | 3-6,7-6,6-4 |
| ITF Japan F4 | 2017/03/31 01:00 | Tung-Lin Wu v Kaito Uesugi | 1-6,1-6 |
| ITF Japan F4 | 2017/03/30 01:00 | Kaito Uesugi v Jumpei Yamasaki | 6-2,6-2 |
| ITF Japan F4 | 2017/03/28 03:00 | Kaito Uesugi v Issei Okamura | 6-3,6-3 |
| ITF Japan F3 | 2017/03/22 04:15 | Yusuke Takahashi v Kaito Uesugi | 6-4,6-1 |
| ITF Japan F3 | 2017/03/20 02:55 | Kaito Uesugi v Yuichi Ito | 7-5,3-6,6-2 |
| Challenger Yokohama | 2017/03/03 05:00 | Kaito Uesugi v Tatsuma Ito | 7-6,2-6,6-7 |
| Challenger Yokohama | 2017/03/02 02:50 | Ruben Bemelmans v Kaito Uesugi | 4-6,6-3,3-6 |
| Challenger Yokohama | 2017/02/28 05:10 | Yasutaka Uchiyama v Kaito Uesugi | 4-6,6-1,3-6 |