Ground: Synthetic outdoor
| ITF Japan F7 | 2015/06/18 02:15 | Hiroyasu Ehara v Koichi Sano | 6-1,6-3 |
| ITF Japan F7 | 2015/06/17 01:30 | Hiroyasu Ehara v Yuichiro Inui | 6-4,6-0 |
| ITF Korea F1 | 2015/05/22 04:00 | Hiroyasu Ehara v Min Hyeok Cho | 0-6,0-6 |
| ITF Korea F1 | 2015/05/21 07:45 | Ho-Min Kang v Hiroyasu Ehara | 1-6,7-6,3-6 |
| ITF Korea F1 | 2015/05/19 05:05 | Hiroyasu Ehara v Marcos Giron | 2-6,7-5,7-5 |
| ITF Greece F9 | 2015/04/30 08:50 | Hiroyasu Ehara v Giacomo Miccini | 2-6,3-6 |
| ITF Greece F9 | 2015/04/29 08:10 | Hiroyasu Ehara v Filip Brtnicky | 4-6,6-4,6-4 |
| ITF Greece F5 | 2015/04/26 09:40 | Erik Crepaldi v Hiroyasu Ehara | 3-6,6-0,3-6 |
| ITF Japan F7 | 2015/06/18 02:00 | Ryota Tanuma v Katsuki Nagao | 6-3,6-1 |
| ITF Japan F7 | 2015/06/17 01:00 | Masaki Sasai v Ryota Tanuma | 1-6,3-6 |
| ITF Japan F6 | 2015/06/11 02:35 | Yusuke Takahashi v Ryota Tanuma | 6-4,6-4 |
| ITF Japan F6 | 2015/06/09 05:00 | Shunrou Takeshima v Ryota Tanuma | 3-6,1-6 |
| ITF Japan F5 | 2015/06/03 06:00 | Ryota Tanuma v Makoto Ochi | 5-7,4-6 |
| ITF Japan F5 | 2015/06/01 04:10 | Issei Okamura v Ryota Tanuma | 6-7,4-6 |
| ITF USA F14 | 2015/04/29 14:30 | Ryota Tanuma v Ryan Haviland | 2-6,3-6 |
| ITF Japan F4 | 2015/04/01 03:00 | Yasutaka Uchiyama v Ryota Tanuma | 6-4,6-2 |