Stadium: Center Court Round: 26 Ground: Hardcourt indoor
| Challenger Nonthaburi Qual | 2022/09/04 07:30 | Shinji Hazawa v Naoki Nakagawa | 4-6,4-6 |
| Challenger Kobe | 2022/11/15 07:10 | James Duckworth v Shinji Hazawa | 4-6,4-6 |
| Challenger Matsuyama | 2022/11/07 01:00 | Seong Chan Hong v Shinji Hazawa | 6-3,6-4 |
| Challenger Matsuyama | 2022/11/06 01:00 | Shinji Hazawa v Yuki Mochizuki | 1-6,7-6,6-2 |
| Challenger Yokohama | 2022/10/31 04:40 | Shinji Hazawa v Ergi Kirkin | 4-6,2-6 |
| Challenger Busan | 2022/10/17 03:30 | Keegan Smith v Shinji Hazawa | 2-6,6-1,6-2 |
| Challenger Busan | 2022/10/16 04:10 | Shinji Hazawa v Kaito Uesugi | 6-2,6-1 |
| Challenger Gwangju | 2022/10/03 02:00 | Ji Sung Nam v Shinji Hazawa | 6-1,7-6 |
| ITF M25 Kashiwa | 2022/09/30 03:05 | Makoto Ochi v Shinji Hazawa | 7-5,6-1 |
| Challenger Kobe | 2022/11/16 03:40 | Shintaro Mochizuki v Naoki Nakagawa | 4-6,2-6 |
| Challenger Kobe | 2022/11/14 01:00 | Mukund Sasikumar v Naoki Nakagawa | 3-6,6-7 |
| Challenger Kobe | 2022/11/13 02:15 | Asahi Harazaki v Naoki Nakagawa | 3-6,2-6 |
| Challenger Matsuyama | 2022/11/08 05:35 | Frederico Ferreira Silva v Naoki Nakagawa | 6-3,6-3 |
| Challenger Matsuyama | 2022/11/07 01:00 | Ergi Kirkin v Naoki Nakagawa | 4-6,6-2,6-1 |
| Challenger Matsuyama | 2022/11/06 01:00 | Ryota Tanuma v Naoki Nakagawa | 3-6,4-6 |
| Challenger Yokohama | 2022/10/31 06:45 | Yosuke Watanuki v Naoki Nakagawa | 6-4,6-4 |
| Challenger Busan | 2022/10/18 03:55 | Christopher Eubanks v Naoki Nakagawa | 6-0,6-3 |