Ground: Hardcourt outdoor
| ITF Japan F1 | 2015/03/10 01:00 | Yuichi Ito v Hiromasa Oku | 6-2,6-4 |
| ITF Japan F4 | 2015/04/01 03:20 | Yuichi Ito v Takuto Niki | 1-6,4-6 |
| ITF Japan F4 | 2015/03/30 05:00 | Yuichi Ito v Gengo Kikuchi | 1-6,6-3,6-3 |
| ITF Japan F3 | 2015/03/25 03:00 | Masato Shiga v Yuichi Ito | 3-6,6-3,5-7 |
| ITF Japan F2 | 2015/03/17 03:25 | Pietro Licciardi v Yuichi Ito | 7-5,6-4 |
| ITF Japan F1 | 2015/03/14 02:00 | Takuto Niki v Yuichi Ito | 7-6,6-3 |
| ITF Japan F1 | 2015/03/13 01:00 | Yuichi Ito v Luca Pancaldi | 6-1,6-2 |
| ITF Japan F1 | 2015/03/12 01:00 | Kento Takeuchi v Yuichi Ito | 2-6,3-6 |
| ITF Japan F1 | 2015/03/10 01:00 | Yuichi Ito v Hiromasa Oku | 6-2,6-4 |
| ITF Thailand F9 | 2015/04/22 07:50 | Hiromasa Oku v Yong-Kyu Lim | 3-6,1-6 |
| ITF Thailand F9 | 2015/04/20 03:00 | Jacob Grills v Hiromasa Oku | 6-2,3-6,1-6 |
| ITF Japan F3 | 2015/03/21 02:30 | Hiromasa Oku v Kaito Uesugi | 6-4,6-4 |
| ITF Japan F2 | 2015/03/16 01:00 | Yutaro Matsuzaki v Hiromasa Oku | 6-2,3-6,7-6 |
| ITF Japan F1 | 2015/03/10 01:00 | Yuichi Ito v Hiromasa Oku | 6-2,6-4 |
| ITF Hong Kong F2 | 2014/07/14 03:30 | Gengo Kikuchi v Hiromasa Oku | 6-7,6-4,6-2 |
| ITF Japan F8 | 2014/06/26 03:30 | Hiromasa Oku v Yoshihito Nishioka | 0-6,3-6 |
| ITF Japan F8 | 2014/06/25 01:00 | Soichiro Moritani v Hiromasa Oku | 3-6,3-6 |