Ground: Synthetic outdoor
| ITF Japan F7 | 2015/06/17 01:30 | Ehara, Hiroyasu v Yuichiro Inui | 6-4,6-0 |
| ITF Korea F1 | 2015/05/22 04:00 | Ehara, Hiroyasu v Cho, Min Hyeok | 0-6,0-6 |
| ITF Korea F1 | 2015/05/21 07:45 | Kang, Ho-Min v Ehara, Hiroyasu | 1-6,7-6,3-6 |
| ITF Korea F1 | 2015/05/19 05:05 | Ehara, Hiroyasu v Marcos Giron | 2-6,7-5,7-5 |
| ITF Greece F9 | 2015/04/30 08:50 | Ehara, Hiroyasu v Miccini, Giacomo | 2-6,3-6 |
| ITF Greece F9 | 2015/04/29 08:10 | Ehara, Hiroyasu v Brtnicky, Filip | 4-6,6-4,6-4 |
| ITF Greece F5 | 2015/04/26 09:40 | Crepaldi, Erik v Ehara, Hiroyasu | 3-6,6-0,3-6 |
| ITF Greece F5 | 2015/04/25 07:00 | Simunek, David v Ehara, Hiroyasu | 1-6,2-6 |
| ITF Japan F7 | 2015/06/17 04:30 | Sano, Koichi v Kwon, OH-Hee | 6-3,3-6,6-4 |
| ITF Japan F7 Qual | 2015/06/15 00:30 | Sano, Koichi v Osafune, Masaki | 6-4,6-2 |
| ITF Japan F6 | 2015/06/09 04:00 | Sano, Koichi v Issei Okamura | 2-6,4-6 |
| ITF Japan F6 Qual | 2015/06/08 01:00 | Kishi, Ryota v Sano, Koichi | 2-6,0-6 |
| ITF Japan F6 Qual | 2015/06/07 05:00 | Sano, Koichi v Numajiri, Keisuke | 6-0,4-6,6-1 |
| ITF Japan F5 | 2015/06/02 03:15 | Oku, Hiromasa v Sano, Koichi | 6-4,3-6,6-2 |
| ITF Guam F1 | 2015/05/28 00:00 | Sano, Koichi v Ko Suzuki | 2-6,1-6 |
| ITF Guam F1 | 2015/05/26 03:40 | Matias Franco Descotte v Sano, Koichi | 2-6,6-7 |