Round: 25 Ground: Hardcourt outdoor
| ITF Japan F1 | 2015/03/09 00:40 | Shintaro Imai v Issei Okamura | 6-0,6-1 |
| Others | 2016/11/12 07:00 | Issei Okamura v Sergey Betov | 6-4,5-7,3-6 |
| Others | 2016/11/12 04:30 | Issei Okamura v Soichiro Moritani | 7-5,6-2 |
| Others | 2016/11/05 02:00 | Issei Okamura v Masato Shiga | 3-6,1-6 |
| ITF Chinese Taipei F1 | 2016/10/11 02:00 | Tung-Lin Wu v Issei Okamura | 6-2,3-6,6-2 |
| ITF Vietnam F5 | 2016/09/22 03:00 | Issei Okamura v Shinta Fujii | 3-6,6-7 |
| ITF Vietnam F5 | 2016/09/20 03:00 | Issei Okamura v Ren Nakamura | 6-2,6-3 |
| ITF Vietnam F4 | 2016/09/16 03:00 | Yuichi Ito v Issei Okamura | 6-2,4-6,6-4 |
| ITF Vietnam F4 | 2016/09/15 03:30 | Seungri Choi v Issei Okamura | 4-6,3-6 |
| Others | 2016/11/12 08:30 | Michal Przysiezny v Shintaro Imai | 7-6,6-2 |
| Others | 2016/11/12 03:50 | Shunrou Takeshima v Shintaro Imai | 4-6,6-4,3-6 |
| Challenger Kobe | 2016/11/09 03:45 | Shintaro Imai v James Duckworth | 0-6,7-6,4-6 |
| Others | 2016/11/07 02:00 | Shintaro Imai v Kento Takeuchi | 6-3,6-3 |
| Others | 2016/11/06 02:00 | Christopher Rungkat v Shintaro Imai | 6-7,2-6 |
| Others | 2016/11/05 03:45 | Shintaro Imai v Young Seok Kim | 6-1,6-2 |
| ITF Vietnam F6 - Final | 2016/09/27 05:00 | Chan-Yeong Oh v Shintaro Imai | 6-3,5-7,7-6 |
| ITF Vietnam F5 | 2016/09/20 04:55 | David Nguyen v Shintaro Imai | 6-4,1-6,6-4 |