| ITF - Japan F4 | 2016/03/31 01:00 | Issei Okamura v Finn Tearney | 3-6,2-6 |
| ITF - Japan F4 | 2016/03/30 01:00 | Issei Okamura v Kittiphong Wachiramanowong | 6-4,6-2 |
| ITF - Japan F2 | 2016/03/17 02:30 | Issei Okamura v Sidharth Rawat | 4-6,6-1,6-7 |
| ITF - Japan F2 | 2016/03/15 04:25 | Young Seok Kim v Issei Okamura | 7-6,3-6,4-6 |
| ITF - Japan F1 | 2016/03/12 04:10 | Issei Okamura v Liang-Chi Huang | 3-6,4-6 |
| ITF - Japan F1 | 2016/03/12 01:00 | Karunuday Singh v Issei Okamura | 3-6,2-6 |
| ITF - Japan F1 | 2016/03/10 06:35 | Sidharth Rawat v Issei Okamura | 2-6,4-6 |
| ITF - Japan F1 | 2016/03/08 01:00 | Issei Okamura v Kento Takeuchi | 7-6,7-6 |
| ITF - Japan F5 | 2016/04/04 00:30 | Antso Rakotondramanga v Yuya Ito | 3-6,6-7 |
| ITF - Japan F5 | 2016/04/03 02:00 | Yuya Ito v Tetsuro Habusawa | 6-0,6-0 |
| ITF - Japan F5 | 2016/04/02 02:00 | Yuta Shimizu v Yuya Ito | 2-6,2-6 |
| ITF - Japan F3 | 2016/03/23 01:00 | Yuya Ito v Shuichi Sekiguchi | 5-7,4-6 |
| ITF - Japan F3 | 2016/03/22 01:00 | Yuya Ito v Sho Katayama | 6-4,6-0 |
| ITF - Japan F3 | 2016/03/20 01:00 | Yuya Ito v Katsuki Nagao | 6-3,6-4 |
| ITF - Japan F3 | 2016/03/19 03:45 | Kittiphong Wachiramanowong v Yuya Ito | 6-7,3-6 |
| ITF - Japan F3 | 2016/03/19 00:30 | Yuya Ito v Masayoshi Ono | 6-1,6-1 |