Round: 25 Ground: Synthetic outdoor
| ITF Japan F1 | 2016/03/08 01:00 | Issei Okamura v Kento Takeuchi | 7-6,7-6 |
| ITF Japan F6 | 2016/05/31 01:00 | Ko Suzuki v Issei Okamura | 6-1,6-3 |
| ITF Spain F15 | 2016/05/25 09:00 | Issei Okamura v Bernabe Zapata Miralles | 3-6,2-6 |
| ITF Spain F14 | 2016/05/16 09:00 | Issei Okamura v Ryota Tanuma | 0-6,3-6 |
| ITF Spain F13 | 2016/05/12 10:10 | Issei Okamura v Juan Lizariturry | 5-7,5-7 |
| ITF Spain F13 | 2016/05/10 16:00 | Issei Okamura v Andrey Chepelev | 3-6,6-4,7-6 |
| ITF Spain F13 | 2016/05/09 08:00 | Issei Okamura v Thibault Cancel | 6-4,5-7,4-6 |
| ITF Spain F13 | 2016/05/07 13:30 | Issei Okamura v Brandon Levendale | 6-2,6-1 |
| ITF Turkey F18 | 2016/05/06 08:00 | Issei Okamura v Hugo Nys | 0-6,3-6 |
| ITF Japan F6 | 2016/06/01 01:00 | Kento Takeuchi v Yuichi Ito | 4-6,3-6 |
| ITF Japan F6 | 2016/05/31 04:25 | Kento Takeuchi v Ryota Tanuma | 6-3,3-6,6-2 |
| ITF China F8 | 2016/05/24 06:35 | Kento Takeuchi v Harry Bourchier | 6-7,4-6 |
| ITF China F5 | 2016/04/12 02:00 | Kento Takeuchi v Rigele Te | 1-6,1-6 |
| ITF Japan F5 | 2016/04/08 02:30 | Yosuke Watanuki v Kento Takeuchi | 6-1,6-2 |
| ITF Japan F5 | 2016/04/05 02:00 | Nam Hoang Ly v Kento Takeuchi | 4-6,6-7 |
| ITF Japan F4 | 2016/03/31 01:00 | Shintaro Imai v Kento Takeuchi | 6-1,6-3 |
| ITF Japan F4 | 2016/03/29 02:00 | Nam Hoang Ly v Kento Takeuchi | 4-6,5-7 |