Round: 25 Ground: Clay
| ITF Japan F7 | 2016/06/08 01:00 | Nagao, Katsuki v Takeuchi, Kento (1987) | 4-6,1-6 |
| ITF Japan F7 | 2016/06/07 01:00 | Ryotaro Matsumura v Nagao, Katsuki | 4-6,4-6 |
| ITF Japan F6 | 2016/05/31 01:00 | Katayama, Sho v Nagao, Katsuki | 3-6,6-4,6-3 |
| ITF Guam F1 | 2016/05/23 00:00 | Nagao, Katsuki v Kibi, Yuya | 6-7,4-6 |
| ITF Turkey F19 | 2016/05/11 09:40 | Nagao, Katsuki v Fernando Yamacita | 1-6,1-6 |
| ITF Turkey F18 | 2016/05/06 08:00 | Nagao, Katsuki v Sieber, Marc | 3-6,6-4,2-6 |
| ITF Turkey F18 | 2016/05/03 11:50 | Niesten, Miliaan v Nagao, Katsuki | 4-6,3-6 |
| Turkey F17, Singles Qualifying | 2016/04/26 11:20 | Nagao, Katsuki v Sieber, Marc | 2-6,1-6 |
| ITF Japan F7 | 2016/06/08 01:00 | Ito, Yuichi v King, Evan | 3-6,6-7 |
| ITF Japan F7 | 2016/06/07 05:10 | Ito, Yuichi v Hikaru Shiraishi | 6-1,6-0 |
| ITF Japan F6 | 2016/06/03 03:15 | Ito, Yuichi v Sekiguchi, Shuichi | 1-6,2-6 |
| ITF Japan F6 | 2016/06/01 01:00 | Takeuchi, Kento (1987) v Ito, Yuichi | 4-6,3-6 |
| ITF Japan F6 | 2016/05/31 02:25 | Hatakeyama, Nasa v Ito, Yuichi | 2-6,2-6 |
| ITF India F3 | 2016/05/11 05:00 | Vishnu Vardhan v Ito, Yuichi | 7-6,7-6 |
| ITF India F3 | 2016/05/10 10:00 | Alcantara, Francis Casey v Ito, Yuichi | 6-7,7-5,3-6 |
| ITF India F1 | 2016/04/29 06:05 | Susanto, David Agung v Ito, Yuichi | 0-6,6-3,7-5 |