Round: 25 Ground: Hardcourt outdoor
| ITF Thailand F9 | 2015/12/02 08:25 | Kittiphong Wachiramanowong v Issei Okamura | 3-6,6-4,6-3 |
| 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 Turkey F6 | 2016/02/12 09:00 | Issei Okamura v Seong Chan Hong | 7-5,4-6,3-6 |
| ITF Turkey F6 | 2016/02/11 13:45 | Patrik Nema v Issei Okamura | 1-6,5-7 |
| ITF Japan F3 | 2016/03/19 03:45 | Kittiphong Wachiramanowong v Yuya Ito | 6-7,3-6 |
| ITF Japan F2 | 2016/03/12 02:00 | Kittiphong Wachiramanowong v Wishaya Trongcharoenchaikul | 3-6,1-6 |
| Challenger Bangkok 4 | 2016/01/04 06:00 | Tsung-Hua Yang v Kittiphong Wachiramanowong | 6-3,6-4 |
| ITF Thailand F9 | 2015/12/03 03:00 | Kittiphong Wachiramanowong v Phassawit Bura'ritta | 1-6,4-6 |
| ITF Thailand F9 | 2015/12/02 08:25 | Kittiphong Wachiramanowong v Issei Okamura | 3-6,6-4,6-3 |
| ITF Thailand F9 | 2015/11/30 05:35 | Young Seok Kim v Kittiphong Wachiramanowong | 4-6,4-6 |
| ITF Thailand F9 | 2015/11/24 04:35 | Kittiphong Wachiramanowong v Warit Sornbutnark | 6-7,6-1,4-6 |
| ITF Thailand F9 | 2015/08/12 06:10 | Kittiphong Wachiramanowong v Jordan Thompson | 6-7,3-6 |