Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF - M25 Sapporo | 2023/09/17 01:55 | Naoki Nakagawa v Kazuki Nishiwaki | 4-6,6-1,6-4 |
| ITF - M25 Sapporo | 2023/09/16 05:30 | Shuichi Sekiguchi v Kazuki Nishiwaki | 6-0,5-7,4-6 |
| ITF - M25 Sapporo | 2023/09/16 01:00 | Kazuki Nishiwaki v Yuki Mochizuki | 6-1,6-3 |
| ITF - M25 Sapporo | 2023/09/15 03:20 | Kousuke Ogura v Kazuki Nishiwaki | 4-6,7-5,2-6 |
| ITF - M25 Sapporo | 2023/09/13 04:00 | Kazuki Nishiwaki v Taki Adachi | 6-1,6-2 |
| ITF - M25 Hong Kong | 2023/09/09 10:00 | Kazuki Nishiwaki v Coleman Wong | 2-6,7-5,8-10 |
| ITF - M25 Hong Kong | 2023/09/07 07:00 | Jie Cui v Kazuki Nishiwaki | 5-7,4-6 |
| ITF - M25 Hong Kong | 2023/09/06 02:00 | Collin Altamirano v Kazuki Nishiwaki | 3-6,5-7 |
| ITF M15 Akishima | 2019/06/11 00:00 | Tamaki Yamao v Taisei Miyamoto | 6-4,2-6,10-4 |
| ITF Japan F8 | 2018/06/09 05:10 | Masaya Kobayashi v Taisei Miyamoto | 6-3,6-3 |
| ITF Japan F7 | 2018/06/04 03:10 | Kaito Itsusaki v Taisei Miyamoto | 6-1,6-7,6-2 |
| ITF Japan F7 Qual | 2018/06/03 02:45 | Taisei Miyamoto v Yuga Tashiro | 5-7,4-6 |
| ITF Japan F7 Qual | 2018/06/02 01:00 | Daisuke Sumizawa v Taisei Miyamoto | 2-6,4-6 |
| ITF Japan F8 | 2017/06/11 00:00 | Taisei Miyamoto v Yuki Matsuo | 1-6,5-7 |
| ITF Japan F8 | 2017/06/10 04:00 | Taisei Miyamoto v Takahiro Kubo | 6-1,6-2 |
| ITF Japan F6 Qual | 2017/05/27 01:00 | Tomohiro Masabayashi v Taisei Miyamoto | 6-3,7-5 |