Stadium: Court 2 Round: 14 Ground: Hardcourt outdoor
| Challenger Nonthaburi | 2022/08/21 07:40 | Shinji Hazawa v Yuta Shimizu | 2-6,4-6 |
| Kuching, Singles Main, M-ITF-MAS-03A | 2022/08/03 01:00 | Kokoro Isomura v Shinji Hazawa | 2-6,6-3,6-1 |
| ITF M15 Kuala Lumpur | 2022/07/29 01:00 | Shinji Hazawa v Yuta Shimizu | 4-6,3-6 |
| ITF M15 Kuala Lumpur | 2022/07/28 01:00 | Shinji Hazawa v Takuya Kumasaka | 6-3,7-5 |
| ITF M15 Seremban | 2022/07/24 01:00 | Shinji Hazawa v Daisuke Sumizawa | 0-6,2-6 |
| ITF M15 Seremban | 2022/07/23 05:15 | Son, Ji Hoon v Shinji Hazawa | 3-6,6-4,3-6 |
| ITF M15 Seremban | 2022/07/22 01:00 | Shinji Hazawa v Tomohiro Masabayashi | 2-6,6-2,6-2 |
| ITF M15 Chiang Rai | 2022/06/16 06:15 | Shintaro Imai v Shinji Hazawa | 6-2,6-4 |
| Nonthaburi 3, Thailand, Qualifying | 2022/08/28 08:55 | Beibit Zhukayev v Naoki Nakagawa | 6-1,6-4 |
| Challenger Amersfoort | 2022/07/10 10:40 | Luca Van Assche v Naoki Nakagawa | 3-6,6-2,6-4 |
| Bogota, Colombia | 2022/07/05 17:05 | Facundo Juarez v Naoki Nakagawa | 7-5,1-6,6-1 |
| Bogota, Colombia | 2022/07/04 15:00 | Naoki Nakagawa v Kiranpal Pannu | 1-6,6-4,6-2 |
| Bogota, Colombia | 2022/07/03 15:00 | Naoki Nakagawa v Chen, Kuan Yu | 6-2,6-4 |
| Cali, Colombia | 2022/06/26 16:50 | Joao Victor C Loureiro v Naoki Nakagawa | 7-6,7-6 |
| Challenger - Buenos Aires | 2022/06/21 14:20 | Naoki Nakagawa v Juan Bautista Otegui | 4-6,2-6 |
| Challenger - Buenos Aires | 2022/06/20 15:35 | Naoki Nakagawa v Pini, Francisco | 6-2,7-5 |