Ground: Clay
| ITF Japan F5 | 2015/05/30 01:00 | Ryotaro Matsumura v Shinta Fujii | 6-3,6-1 |
| ITF Japan F4 | 2015/04/01 01:00 | Ryotaro Matsumura v Shuichi Sekiguchi | 2-6,4-6 |
| ITF Japan F4 | 2015/03/31 03:50 | Masaki Sasai v Ryotaro Matsumura | 2-6,2-6 |
| ITF Japan F4 | 2015/03/30 01:00 | Ryotaro Matsumura v Yutaro Matsuzaki | 6-4,6-3 |
| ITF Japan F3 | 2015/03/21 04:00 | Ko Suzuki v Ryotaro Matsumura | 6-0,6-1 |
| ITF USA F9 Qual | 2015/02/22 16:00 | Wil Spencer v Ryotaro Matsumura | 7-6,5-7,6-2 |
| ITF USA F9 Qual | 2015/02/21 19:00 | Ryotaro Matsumura v Kaptan Kaster | 6-2,6-0 |
| ITF Peru F1 | 2014/10/21 15:00 | Gonzalo Escobar v Ryotaro Matsumura | 6-0,6-1 |
| ITF Spain F14 Qual | 2015/05/16 09:00 | Soichiro Moritani v Eric Caleguer | 6-0,6-1 |
| ITF Spain F13 | 2015/05/11 10:00 | Jaume Pla Malfeito v Soichiro Moritani | 6-0,6-1 |
| ITF Spain F13 | 2015/05/10 12:00 | Eric Caleguer v Soichiro Moritani | 1-6,1-6 |
| ITF Japan F3 | 2015/03/24 01:00 | Yong-Kyu Lim v Soichiro Moritani | 7-6,6-3 |
| ITF Japan F2 | 2015/03/19 01:00 | Chu-Huan Yi v Soichiro Moritani | 6-3,6-7,6-1 |
| ITF Japan F2 | 2015/03/17 05:25 | Ko Suzuki v Soichiro Moritani | 6-3,3-6,2-6 |
| ITF Japan F2 | 2015/03/15 01:00 | Yohei Ono v Soichiro Moritani | 6-2,2-6,2-6 |
| ITF Japan F2 | 2015/03/14 00:30 | Soichiro Moritani v Keisuke Watanuki | 6-4,6-2 |