| UTR Pro Tennis Series Miki | 2022/07/10 00:30 | Kazuki Nishiwaki v Ryotaro Matsumura | 6-1,5-4 |
| UTR Pro Tennis Series Miki | 2022/07/09 00:30 | Ryuki Matsuda v Kazuki Nishiwaki | 1-6,1-6 |
| UTR Pro Tennis Series Miki | 2022/07/08 00:30 | Hiroki Sakagawa v Kazuki Nishiwaki | 1-6,7-6,2-6 |
| UTR Pro Tennis Series Miki | 2022/07/07 02:00 | Yamato Sueoka v Kazuki Nishiwaki | 1-6,2-6 |
| UTR Pro Tennis Series Miki | 2022/07/06 05:00 | Tatsuma Ito v Kazuki Nishiwaki | 7-6,6-4 |
| UTR Pro Tennis Series Miki | 2022/07/04 00:30 | Shin Inoue v Kazuki Nishiwaki | 6-4,3-6,0-6 |
| ITF M15 Antalya | 2022/04/03 07:00 | Kazuki Nishiwaki v Daniil Ostapenkov | 1-6,7-5,9-11 |
| ITF M15 Antalya | 2022/03/23 10:30 | Kazuki Nishiwaki v Rudolf Molleker | 1-6,3-6 |
| UTR Pro Tennis Series Miki | 2022/07/09 05:00 | Shin Inoue v Daisuke Inagawa | 6-3,6-2 |
| UTR Pro Tennis Series Miki | 2022/07/07 00:30 | Daisuke Inagawa v Asahi Harazaki | 1-6,2-6 |
| UTR Pro Tennis Series Miki | 2022/07/06 02:00 | Daisuke Inagawa v Ryuya Ata | 4-6,6-4,4-6 |
| UTR Pro Tennis Series Miki | 2022/07/05 03:30 | Daisuke Inagawa v Ryuki Matsuda | 0-6,1-6 |
| UTR Pro Tennis Series Miki | 2022/07/04 05:00 | Daisuke Inagawa v Tayio Hirano | 1-6,4-6 |