Round: 25 Ground: Hardcourt outdoor
| ITF Japan F8 | 2015/06/24 01:10 | Oku, Hiromasa v Katayama, Sho | 6-7,0-6 |
| ITF Japan F7 | 2015/06/19 03:00 | Oku, Hiromasa v Watanuki, Yusuke | 2-6,3-6 |
| ITF Japan F7 | 2015/06/18 02:05 | Oku, Hiromasa v Makoto Ochi | 6-4,6-3 |
| ITF Japan F7 | 2015/06/16 00:30 | Oku, Hiromasa v Ku Keon Kang | 6-2,6-1 |
| ITF Japan F6 | 2015/06/10 01:30 | Watanuki, Keisuke v Oku, Hiromasa | 6-2,6-3 |
| ITF Japan F5 | 2015/06/06 03:00 | Saito, Takashi v Oku, Hiromasa | 6-3,6-1 |
| ITF Japan F5 | 2015/06/05 02:35 | Oku, Hiromasa v Makoto Ochi | 2-6,6-2,6-4 |
| ITF Japan F5 | 2015/06/04 01:00 | Oku, Hiromasa v Ito, Yuichi | 6-0,6-1 |
| ITF Japan F1 | 2016/03/07 01:00 | Shintaro Imai v Kishi, Ryota | 6-4,6-4 |
| ITF Japan F1 | 2016/03/06 01:00 | Shintaro Imai v Yusuke Takahashi | 6-0,6-1 |
| ITF Korea F1 | 2015/05/20 05:00 | Soonwoo Kwon v Shintaro Imai | 7-5,6-3 |
| ITF Korea F1 | 2015/05/19 01:00 | Shintaro Imai v Jeamoon Lee | 6-3,6-3 |
| ITF Korea F1 | 2015/05/17 02:00 | Shintaro Imai v Sin, Dong-Hak | 6-4,6-0 |
| ITF Korea F1 | 2015/05/16 01:00 | Shintaro Imai v Shin, Seung-Hun | 6-2,6-2 |
| ITF Japan F4 | 2015/03/31 01:00 | Lim, Yong-Kyu v Shintaro Imai | 6-3,6-4 |
| ITF Japan F3 | 2015/03/26 02:40 | Shintaro Imai v Naoki Nakagawa | 6-3,2-6,6-7 |