| ITF Japan F7 | 2016/06/09 01:00 | Yusuke Watanuki v Ryota Tanuma | 6-0,6-2 |
| ITF Japan F7 | 2016/06/06 01:00 | Ryota Tanuma v Naoto Kai | 6-4,6-3 |
| ITF Japan F6 | 2016/05/31 04:25 | Kento Takeuchi v Ryota Tanuma | 6-3,3-6,6-2 |
| ITF Spain F15 | 2016/05/27 16:05 | Eduardo Struvay v Ryota Tanuma | 6-4,6-2 |
| ITF Spain F15 Qual | 2016/05/23 10:20 | Ryota Tanuma v Leo Julien Sebaoun | 7-6,4-6,6-2 |
| ITF Spain F15 Qual | 2016/05/21 12:30 | Ryota Tanuma v Alex M Pujolras | 6-0,6-1 |
| ITF Spain F14 | 2016/05/18 10:00 | Ryota Tanuma v Jaume Munar | 6-4,2-6,5-7 |
| ITF Spain F14 | 2016/05/16 09:00 | Issei Okamura v Ryota Tanuma | 0-6,3-6 |
| ITF Japan F7 | 2016/06/12 05:20 | Sho Katayama v Evan King | 2-6,6-7 |
| ITF Japan F7 | 2016/06/11 03:40 | Yusuke Takahashi v Sho Katayama | 2-6,0-6 |
| ITF Japan F7 | 2016/06/10 01:00 | Masato Shiga v Sho Katayama | 3-6,3-6 |
| ITF Japan F7 | 2016/06/09 02:00 | Koichi Sano v Sho Katayama | 6-3,2-6,1-6 |
| ITF Japan F7 | 2016/06/07 03:40 | Hiromasa Oku v Sho Katayama | 1-6,2-6 |
| ITF Japan F6 | 2016/06/01 01:00 | Sho Katayama v Yasutaka Uchiyama | 4-6,3-6 |
| ITF Japan F6 | 2016/05/31 01:00 | Sho Katayama v Katsuki Nagao | 3-6,6-4,6-3 |
| ITF Guam F1 | 2016/05/27 00:00 | Deiton Baughman v Sho Katayama | 6-4,6-4 |