Round: 26 Ground: Hardcourt outdoor
| ITF Japan F4 | 2016/03/28 01:00 | Shintaro Imai v Sasai, Masaki | 6-2,6-0 |
| 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 |
| Yokohama, Japan, Qualifying | 2017/02/25 05:30 | Blaz Rola v Shintaro Imai | 6-4,6-1 |
| ITF Indonesia F2 | 2017/02/17 05:45 | Kelly, Dayne v Shintaro Imai | 7-6,6-3 |
| ITF Indonesia F2 | 2017/02/16 06:10 | Purcell, Rhett v Shintaro Imai | 6-7,6-2,3-6 |
| ITF Indonesia F2 | 2017/02/14 03:00 | Ng, Hao Yuan v Shintaro Imai | 0-6,3-6 |
| ITF Indonesia F1 | 2017/02/10 07:45 | Shintaro Imai v Takeuchi, Kento (1987) | 2-6,4-6 |
| ITF Indonesia F1 | 2017/02/09 07:50 | Shintaro Imai v Masaya Kobayashi | 4-6,6-2,7-6 |
| ITF Japan F2 | 2017/03/14 07:45 | Sasai, Masaki v Wishaya Trongcharoenchaikul | 6-3,6-3 |
| ITF Japan F2 | 2017/03/12 01:00 | Fukuoka, Yusei v Sasai, Masaki | 1-6,1-6 |
| ITF Japan F1 | 2017/03/08 03:55 | Kobelt, Peter v Sasai, Masaki | 4-6,6-4,6-1 |
| ITF Japan F1 | 2017/03/06 01:00 | Cao, Zhaoyi v Sasai, Masaki | 0-6,1-6 |
| Others | 2016/11/12 00:30 | Sasai, Masaki v Kim, Young Seok | 1-6,5-7 |
| ITF Korea F8 | 2016/09/05 01:30 | Sasai, Masaki v Choi, Jong Min | 2-6,6-2,1-6 |
| ITF Korea F8 | 2016/09/04 03:00 | Sasai, Masaki v Sin, Dong-Hak | 6-2,6-1 |
| ITF Korea F8 | 2016/08/29 02:30 | Sasai, Masaki v Kang, Ku Keon | 5-7,2-6 |