Round: 27 Ground: Hardcourt outdoor
| ITF Japan F4 | 2016/03/30 01:00 | Takuto Niki v Ryota Tanuma | 4-6,5-7 |
| ITF Japan F8 | 2016/06/15 04:30 | Ryota Tanuma v Sho Katayama | 3-6,1-6 |
| 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 Japan F8 | 2016/06/16 01:00 | Renta Tokuda v Takuto Niki | 6-3,7-6 |
| ITF Japan F8 | 2016/06/15 04:30 | Shoma Kato v Takuto Niki | 3-6,3-6 |
| ITF Japan F7 | 2016/06/07 01:00 | Keisuke Watanuki v Takuto Niki | 6-4,7-6 |
| ITF Japan F6 | 2016/05/31 01:00 | Takuto Niki v Hiromasa Oku | 2-6,3-6 |
| ITF Guam F1 | 2016/05/27 01:25 | Andrew Whittington v Takuto Niki | 4-6,6-4,6-4 |
| ITF Guam F1 | 2016/05/24 06:30 | Mark Oljaca v Takuto Niki | 4-6,0-6 |
| ITF Japan F5 | 2016/04/08 06:25 | Takuto Niki v Sho Katayama | 7-6,2-6,3-6 |
| ITF Japan F5 | 2016/04/06 03:40 | Takuto Niki v Ko Suzuki | 6-4,3-6,6-2 |