Round: 62 Ground: Hardcourt outdoor
| ITF Korea F8 | 2016/09/06 04:00 | Nagao, Katsuki v Numajiri, Keisuke | 6-3,4-6,0-6 |
| ITF Korea F7 | 2016/08/31 04:35 | Makoto Ochi v Nagao, Katsuki | 6-3,6-2 |
| ITF Korea F7 | 2016/08/30 01:30 | Nagao, Katsuki v Choi, Jae-Won | 6-3,7-6 |
| ITF Korea F8 | 2016/08/23 04:15 | Jae Hwan Kim v Nagao, Katsuki | 6-3,6-2 |
| ITF Japan F8 | 2016/06/16 01:00 | Yuki Mochizuki v Nagao, Katsuki | 6-1,6-0 |
| ITF Japan F8 | 2016/06/14 03:00 | Nagao, Katsuki v Ito, Yuichi | 6-2,6-4 |
| 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 |
| Spain F6, Singles | 2017/02/19 11:00 | Sebaoun, Leo Julien v Mas Mascolo, Adria | 2-6,3-6 |
| Spain F6, Singles | 2017/02/18 08:00 | Delmas, Amaury v Sebaoun, Leo Julien | 3-6,6-4,3-6 |
| ITF Spain F5 Qual | 2017/02/12 13:30 | Sebaoun, Leo Julien v Mas Mascolo, Adria | 1-6,2-6 |
| ITF Spain F5 Qual | 2017/02/11 13:30 | Bonapart, Casper v Sebaoun, Leo Julien | 1-6,2-6 |
| Spain F4, Singles Qualifying | 2017/02/04 11:30 | Fornell-Mestres, Marc v Sebaoun, Leo Julien | 6-2,6-1 |
| ITF Spain F3 | 2017/01/28 09:30 | Caleguer, Eric v Sebaoun, Leo Julien | 2-6,6-3,6-1 |
| ITF Qatar F5 Qual | 2016/12/02 23:00 | Nowak, Maciej v Sebaoun, Leo Julien | 3-6,6-3,6-1 |
| ITF Qatar F4 | 2016/11/29 15:45 | Sebaoun, Leo Julien v Cutuli, Domenico | 1-6,4-6 |