Round: 25 Ground: Synthetic outdoor
| ITF Japan F6 | 2016/05/31 04:25 | Takeuchi, Kento (1987) v Tanuma, Ryota | 6-3,3-6,6-2 |
| ITF Spain F15 | 2016/05/27 16:05 | Struvay, Eduardo v Tanuma, Ryota | 6-4,6-2 |
| ITF Spain F15 Qual | 2016/05/23 10:20 | Tanuma, Ryota v Sebaoun, Leo Julien | 7-6,4-6,6-2 |
| ITF Spain F15 Qual | 2016/05/21 12:30 | Tanuma, Ryota v Alex M Pujolras | 6-0,6-1 |
| ITF Spain F14 | 2016/05/18 10:00 | Tanuma, Ryota v Jaume Munar | 6-4,2-6,5-7 |
| ITF Spain F14 | 2016/05/16 09:00 | Issei Okamura v Tanuma, Ryota | 0-6,3-6 |
| ITF Spain F13 | 2016/05/13 08:00 | Tanuma, Ryota v Carlos Taberner | 1-6,2-6 |
| ITF Spain F13 | 2016/05/12 08:00 | Tanuma, Ryota v Artunedo Martinav. | 6-4,4-6,6-3 |
| ITF Japan F4 | 2016/03/26 00:00 | Kikuchi, Gengo v Kai, Naoto | 6-2,7-6 |
| ITF Japan F1 | 2016/03/05 03:00 | Kai, Naoto v Kazuma Kawachi | 6-4,3-6,4-6 |
| ITF Japan F7 Qual | 2015/06/13 00:00 | Kai, Naoto v Numajiri, Keisuke | 2-6,3-6 |