Round: 28 Ground: Hardcourt outdoor
| ITF - Spanien F14 | 2016/05/16 09:00 | Issei Okamura v Ryota Tanuma | 0-6,3-6 |
| ITF - Taiwan F1 | 2015/08/21 02:00 | Issei Okamura v Ryota Tanuma | 6-4,3-6,6-3 |
| ITF - Japan F5 | 2015/06/01 04:10 | Issei Okamura v Ryota Tanuma | 6-7,4-6 |
| ITF - China F13 | 2016/07/21 03:30 | Fajing Sun v Ryota Tanuma | 4-6,4-6 |
| ITF - China F13 | 2016/07/20 03:50 | Sheng Hao Zhou v Ryota Tanuma | 4-6,1-6 |
| ITF - China F13 | 2016/07/19 07:35 | Kazuma Kawachi v Ryota Tanuma | 4-6,2-6 |
| ITF - China F12 | 2016/07/16 05:20 | Bastian Trinker v Ryota Tanuma | 6-1,6-7,6-3 |
| ITF - China F12 | 2016/07/13 02:30 | Chukang Wang v Ryota Tanuma | 5-7,2-6 |
| ITF - China F12 | 2016/07/12 04:50 | Xi Qi v Ryota Tanuma | 3-6,1-6 |
| ITF - Hong Kong F3 | 2016/06/19 22:00 | Ryota Tanuma v Arata Onozawa | 1-6,5-7 |
| ITF - Japan F8 | 2016/06/15 04:30 | Ryota Tanuma v Sho Katayama | 3-6,1-6 |
| ITF - China F13 | 2016/07/21 02:30 | Issei Okamura v Ranjeet Virali-Murugesan | 6-4,6-3 |
| ITF - China F13 | 2016/07/20 02:30 | Issei Okamura v Koichi Sano | 6-0,6-2 |
| ITF - China F13 | 2016/07/19 04:00 | Issei Okamura v Ye Cong Mo | 6-2,6-3 |
| ITF - China F12 | 2016/07/16 03:00 | Issei Okamura v Kuan-Yi Lee | 6-7,4-6 |
| ITF - China F12 | 2016/07/15 04:00 | Mitchell William Robins v Issei Okamura | 3-6,7-5,1-6 |
| ITF - China F12 | 2016/07/14 02:30 | Seungri Choi v Issei Okamura | 2-6,7-6,6-7 |
| ITF - China F12 | 2016/07/12 06:20 | Wei-De Lin v Issei Okamura | 1-6,4-6 |
| ITF - China F11 | 2016/07/09 04:30 | Bastian Trinker v Issei Okamura | 6-3,6-4 |