Round: 28 Ground: Clay
| ITF Japan F5 | 2017/04/07 06:10 | Tatsuma Ito v Tung-Lin Wu | 6-4,6-4 |
| ITF Japan F5 | 2017/04/06 03:10 | Tatsuma Ito v Ryota Tanuma | 6-2,6-4 |
| ITF Japan F5 | 2017/04/04 04:40 | Tatsuma Ito v Katsuki Nagao | 7-6,6-4 |
| Challenger Quanzhou | 2017/03/21 04:50 | Yuki Bhambri v Tatsuma Ito | 7-6,6-2 |
| Challenger Shenzhen | 2017/03/14 06:00 | Duckhee Lee v Tatsuma Ito | 6-1,5-7,6-4 |
| Challenger Yokohama | 2017/03/04 05:50 | Tatsuma Ito v Soonwoo Kwon | 4-6,4-6 |
| Challenger Yokohama | 2017/03/03 05:00 | Kaito Uesugi v Tatsuma Ito | 7-6,2-6,6-7 |
| Challenger Yokohama | 2017/03/03 01:00 | Tatsuma Ito v Go Soeda | 6-4,6-1 |
| ITF Japan F5 | 2017/04/07 07:10 | Yusuke Takahashi v Sho Katayama | 6-1,7-5 |
| ITF Japan F5 | 2017/04/06 02:50 | Yusuke Takahashi v Yuki Matsuo | 6-2,6-3 |
| ITF Japan F5 | 2017/04/04 02:50 | Yusuke Takahashi v Collin Johns | 6-3,6-1 |
| ITF Japan F4 | 2017/04/02 02:00 | Takuto Niki v Yusuke Takahashi | 2-6,2-6 |
| ITF Japan F4 | 2017/04/01 01:00 | Seong Chan Hong 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 | Yuichi Ito 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 |