Round: 25 Ground: Clay
| ITF Japan F5 | 2017/04/07 04:30 | Yusuke Watanuki v Shintaro Imai | 6-1,6-3 |
| ITF Japan F2 | 2014/03/18 01:00 | Yusuke Watanuki v Shintaro Imai | 6-4,6-4 |
| ITF Japan F5 | 2017/04/09 03:30 | Yusuke Watanuki v Masato Shiga | 6-7,5-7 |
| ITF Japan F5 | 2017/04/09 03:00 | Yusuke Watanuki v Masato Shiga | 6-7,5-7 |
| ITF Japan F5 | 2017/04/07 04:30 | Yusuke Watanuki v Shintaro Imai | 6-1,6-3 |
| ITF Japan F5 | 2017/04/05 00:30 | Takao Suzuki v Yusuke Watanuki | 2-6,1-6 |
| ITF Japan F5 | 2017/04/04 04:30 | Yusuke Watanuki v Masaki Sasai | 6-2,6-2 |
| ITF Japan F4 | 2017/03/28 03:00 | Yusuke Watanuki v Jumpei Yamasaki | 7-6,4-6,6-7 |
| ITF Japan F3 | 2017/03/22 07:30 | Xin Gao v Yusuke Watanuki | 2-6,6-3,6-2 |
| ITF Japan F3 | 2017/03/22 03:35 | Collin Johns v Yusuke Watanuki | 3-6,1-6 |
| 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 |
| Challenger Yokohama Qual | 2017/02/25 05:30 | Blaz Rola v Shintaro Imai | 6-4,6-1 |