Round: 26 Ground: Hardcourt outdoor
| ITF China F6 | 2017/05/09 04:20 | Yuichi Ito v Yuanfeng Li | 6-2,3-6,6-3 |
| ITF Japan F5 | 2017/04/04 00:30 | Yuichi Ito v Takuto Niki | 3-6,4-6 |
| ITF Japan F4 | 2017/03/30 03:00 | Yuichi Ito v Yusuke Takahashi | 3-6,3-6 |
| ITF Japan F4 | 2017/03/29 05:30 | Chan-Yeong Oh v Yuichi Ito | 4-6,1-6 |
| ITF Japan F3 | 2017/03/20 02:55 | Kaito Uesugi v Yuichi Ito | 7-5,3-6,6-2 |
| ITF Japan F2 | 2017/03/14 02:30 | Liang-Chi Huang v Yuichi Ito | 6-2,7-5 |
| ITF Japan F1 | 2017/03/09 02:25 | Yuichi Ito v Sho Katayama | 0-6,0-6 |
| ITF Japan F1 | 2017/03/07 02:30 | Naru Shirafuji v Yuichi Ito | 2-6,6-2,3-6 |
| ITF China F6 | 2017/05/09 02:00 | Yecong He v Shintaro Imai | 4-6,6-7 |
| ITF Japan F5 | 2017/04/07 04:30 | Yusuke Watanuki v Shintaro Imai | 6-1,6-3 |
| ITF Japan F5 | 2017/04/05 02:10 | Gengo Kikuchi v Shintaro Imai | 4-6,6-4,3-6 |
| ITF Japan F5 | 2017/04/03 04:15 | Yuta Shimizu v Shintaro Imai | 4-6,2-6 |
| ITF Japan F4 | 2017/03/29 01:00 | Shintaro Imai v Shinji Hazawa | 6-1,3-6,4-6 |
| ITF Japan F2 | 2017/03/16 02:00 | Shintaro Imai v Masaki Sasai | 6-7,3-6 |
| ITF Japan F2 | 2017/03/14 05:45 | Shintaro Imai v Rio Noguchi | 6-1,6-1 |
| ITF Japan F1 | 2017/03/08 01:00 | Yuta Shimizu v Shintaro Imai | 7-5,6-2 |