Stadium: Court 4 Round: 26 Ground: Clay
| ITF Hong Kong F2 | 2017/06/29 02:00 | Jumpei Yamasaki v Shintaro Imai | 4-6,2-6 |
| ITF Japan F5 | 2018/04/02 03:10 | Shintaro Imai v Grills, Jacob | 6-1,6-1 |
| ITF Japan F4 | 2018/03/30 01:00 | Kuan-Yi Lee v Shintaro Imai | 6-1,2-6,6-3 |
| ITF Japan F4 | 2018/03/29 04:15 | Naoki Tajima v Shintaro Imai | 4-6,3-6 |
| ITF Japan F4 | 2018/03/27 01:00 | Kawahashi, Yuta v Shintaro Imai | 3-6,3-6 |
| ITF Japan F3 | 2018/03/22 05:25 | Kaito Uesugi v Shintaro Imai | 6-3,2-6,6-1 |
| ITF Japan F3 | 2018/03/19 04:30 | Rio Noguchi v Shintaro Imai | 6-7,4-6 |
| ITF Japan F2 | 2018/03/17 02:00 | Shintaro Imai v Tung-Lin Wu | 5-7,0-6 |
| ITF Japan F2 | 2018/03/16 01:00 | Moritani, Soichiro v Shintaro Imai | 2-6,5-7 |
| ITF Japan F5 | 2018/04/02 02:20 | Jumpei Yamasaki v Moritani, Soichiro | 6-1,6-3 |
| ITF Japan F4 | 2018/03/28 01:00 | Jumpei Yamasaki v Makoto Ochi | 1-6,2-6 |
| ITF Japan F4 | 2018/03/26 01:00 | Jumpei Yamasaki v Uesugi, Teppei | 6-2,7-5 |
| ITF Japan F4 | 2018/03/25 01:00 | Jumpei Yamasaki v Tashiro, Yuga | 6-2,6-3 |
| ITF Japan F3 | 2018/03/19 01:00 | Sekiguchi, Shuichi v Jumpei Yamasaki | 6-7,7-6,6-2 |
| ITF Japan F2 | 2018/03/13 03:15 | Nguyen, Daniel v Jumpei Yamasaki | 6-1,2-6,6-1 |
| ITF Japan F2 | 2018/03/12 00:30 | Jumpei Yamasaki v Shirafuji, Naru | 6-0,6-0 |
| ITF Japan F2 | 2018/03/11 00:30 | Jumpei Yamasaki v Yasugami, Takashi | 6-0,6-3 |