Stadium: Court 6 Round: 45 Ground: Clay
| ITF M15 Naples | 2019/01/16 18:35 | Luis Patino v Naoki Nakagawa | 7-6,6-0 |
| ITF M15 Naples | 2019/01/15 15:30 | Naoki Nakagawa v Hillel Rousseau | 6-1,6-1 |
| ITF M15 Naples | 2019/01/14 17:00 | Naoki Nakagawa v Maxim Tybar | 6-3,6-3 |
| ITF USA F35 | 2018/12/04 20:00 | Dragos Constantin Ignat v Naoki Nakagawa | 6-3,7-6 |
| ITF USA F35 | 2018/12/02 15:00 | Naoki Nakagawa v Enzo Wallart | 6-4,2-6,6-4 |
| ITF USA F34 | 2018/11/26 18:15 | Vasile-Alexandru Ghilea v Naoki Nakagawa | 6-7,6-3,6-1 |
| Challenger Kobe | 2018/11/10 02:00 | Yuki Mochizuki v Naoki Nakagawa | 6-1,6-7,6-2 |
| ITF USA F28 | 2018/10/14 15:00 | Naoki Nakagawa v Zandrix Acob | 5-7,3-6 |
| ITF USA F30 | 2018/11/07 18:55 | Logan Zapp v Nicolas Mejia | 2-6,1-6 |
| ITF USA F11 | 2018/04/17 23:00 | Logan Zapp v Jacob Dunbar | 2-6,6-7 |