Stadium: Court E Round: 62 Ground: Hardcourt outdoor
| Challenger Yokohama | 2018/03/01 02:00 | Yasutaka Uchiyama v Shinji Hazawa | 6-3,7-5 |
| Challenger Yokohama | 2018/02/27 01:00 | Shinji Hazawa v Soonwoo Kwon | 6-3,4-6,7-6 |
| ITF China F1 | 2018/01/13 04:25 | Huixin Wang v Shinji Hazawa | 3-6,6-0,6-2 |
| ITF China F1 | 2018/01/11 02:30 | Seong-Gook Oh v Shinji Hazawa | 3-6,4-6 |
| ITF China F1 | 2018/01/09 05:15 | Zihao Xia v Shinji Hazawa | 4-6,3-6 |
| Challenger Kobe Qual | 2017/11/04 02:00 | Max Purcell v Shinji Hazawa | 7-6,6-2 |
| ITF Thailand F8 | 2017/10/12 04:40 | Chien Hsun Lo v Shinji Hazawa | 6-2,6-2 |
| ITF Thailand F8 | 2017/10/11 06:15 | Shinji Hazawa v Kento Takeuchi | 6-3,6-1 |
| ITF Japan F1 | 2018/03/04 01:00 | Yo Han Sung v Masamichi Imamura | 0-6,0-6 |
| ITF Japan F1 | 2018/03/03 01:00 | Masamichi Imamura v Shunrou Takeshima | 4-6,6-4,6-2 |
| Challenger Yokohama Qual | 2018/02/26 01:00 | Jumpei Yamasaki v Masamichi Imamura | 4-6,7-6,6-4 |
| Challenger Yokohama Qual | 2018/02/25 01:00 | Masamichi Imamura v Wishaya Trongcharoenchaikul | 6-1,6-4 |
| ITF Japan F6 | 2017/05/29 04:25 | Renta Tokuda v Masamichi Imamura | 6-4,6-0 |
| ITF Japan F5 | 2017/04/03 02:25 | Masamichi Imamura v Chan-Yeong Oh | 6-7,6-4,3-6 |
| ITF Japan F5 | 2017/04/01 01:00 | Kaito Itsusaki v Masamichi Imamura | 3-6,4-6 |
| ITF Japan F3 | 2017/03/18 08:00 | Masamichi Imamura v Katsuki Nagao | 2-6,1-6 |