Stadium: Court 4 Round: 54 Ground: Clay
| ITF Japan F4 | 2018/03/25 05:00 | Masaki Osafune v Yu Hsiang Chiu | 2-6,4-6 |
| ITF Japan F2 | 2018/03/12 00:30 | Soichiro Moritani v Masaki Osafune | 7-6,6-0 |
| ITF Japan F1 | 2018/03/06 01:00 | Naru Shirafuji v Masaki Osafune | 6-0,6-3 |
| ITF Japan F1 | 2018/03/03 04:30 | Cheong Hwi Kim v Masaki Osafune | 1-6,1-6 |
| Challenger Kyoto Qual | 2018/02/18 06:05 | Masaki Osafune v Takuto Niki | 3-6,2-6 |
| Challenger Toyota Qual | 2017/11/11 02:15 | Yuto Sakai v Masaki Osafune | 7-6,1-6,6-1 |
| ITF Guam F1 | 2017/06/22 03:25 | Masaki Osafune v Yuichi Ito | 2-6,4-6 |
| ITF Guam F1 | 2017/06/20 06:00 | Masaki Osafune v Steven Goh | 6-3,6-4 |
| ITF Japan F4 | 2018/03/24 04:00 | Shunsuke Wakita v Tomohiro Masabayashi | 2-6,5-7 |
| ITF Japan F3 | 2018/03/19 05:15 | Shunsuke Wakita v Sora Fukuda | 1-6,0-6 |
| ITF Japan F3 | 2018/03/18 01:00 | Rio Noguchi v Shunsuke Wakita | 6-3,6-3 |
| ITF Tunisia F8 | 2018/02/25 11:00 | Shunsuke Wakita v Len Schouten | 6-7,6-3,6-7 |
| ITF Tunisia F7 | 2018/02/19 09:00 | Louis Tessa v Shunsuke Wakita | 6-2,6-4 |
| ITF Tunisia F7 | 2018/02/18 11:00 | Patric Prinoth v Shunsuke Wakita | 3-6,2-6 |
| ITF Tunisia F6 | 2018/02/11 08:00 | Pedro Munafo v Shunsuke Wakita | 6-2,6-2 |
| ITF Tunisia F6 | 2018/02/10 09:00 | Henrik Traskin v Shunsuke Wakita | 3-6,3-6 |