| ITF Japan F7 | 2015/06/19 04:45 | Hiroyasu Ehara v Ryota Tanuma | 6-2,6-0 |
| 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 F7 | 2015/06/18 00:30 | Arata Onozawa v Renta Tokuda | 6-4,6-2 |
| ITF Japan F7 | 2015/06/16 00:30 | Akito Higa v Renta Tokuda | 0-6,1-6 |
| ITF Japan F7 Qual | 2015/06/15 00:30 | Renta Tokuda v Keisuke Numajiri | 3-6,1-6 |
| ITF Japan F7 Qual | 2015/06/14 00:00 | Renta Tokuda v Takumi Tsunematsu | 6-1,7-5 |
| ITF Japan F6 | 2015/06/09 04:00 | Yusuke Watanuki v Renta Tokuda | 7-5,2-6,6-2 |
| ITF Japan F6 Qual | 2015/06/08 01:00 | Makoto Ochi v Renta Tokuda | 6-7,6-1,4-6 |
| ITF Japan F6 Qual | 2015/06/07 03:30 | Shinta Fujii v Renta Tokuda | 3-6,2-6 |
| ITF Japan F7 | 2014/06/19 03:05 | Yuya Kibi v Renta Tokuda | 7-5,6-4 |