| ITF M25 Nottingham | 2025/05/01 11:07 | Bernard Tomic v Shinji Hazawa | 6-3,6-4 |
| ITF M25 Nottingham | 2025/04/29 09:00 | Luke Hooper v Shinji Hazawa | 4-6,2-6 |
| ITF M25 Nottingham | 2025/04/28 09:00 | Shinji Hazawa v Loic N Tenguere | 7-6,6-3 |
| ITF M25 Nottingham | 2025/04/27 09:00 | Shinji Hazawa v Jamie Diack | 6-3,3-6,1-0 |
| ITF M15 Osaka | 2025/04/16 02:30 | Sora Fukuda v Shinji Hazawa | 5-7,6-3,5-4 |
| ITF M15 Nonthaburi | 2025/03/12 03:00 | Alex Knaff v Shinji Hazawa | 6-3,6-2 |
| ITF M25 Launceston | 2025/02/26 23:00 | Joshua Sheehy v Shinji Hazawa | 7-6,1-6,6-4 |
| ITF M25 Launceston | 2025/02/25 02:11 | Makoto Ochi v Shinji Hazawa | 1-6,4-6 |
| ITF M25 Anning | 2025/05/02 02:30 | Wishaya Trongcharoenchaikul v Sanhui Shin | 6-4,1-6,2-6 |
| ITF M25 Anning | 2025/05/01 04:00 | Ye Hongyu v Sanhui Shin | 1-6,1-6 |
| ITF M25 Anning | 2025/04/30 01:30 | Jay Lin Gibson v Sanhui Shin | 1-6,2-6 |
| ITF M15 Luan | 2025/04/26 02:00 | Egor Agafonov v Sanhui Shin | 6-4,6-4 |
| ITF M15 Luan | 2025/04/25 02:00 | Filip Peliwo v Sanhui Shin | 6-7,3-6 |
| ITF M15 Luan | 2025/04/24 02:00 | Daniil Sarksian v Sanhui Shin | 5-7,2-6 |
| Challenger Busan | 2025/04/17 02:00 | Yu Hsiou Hsu v Sanhui Shin | 6-2,6-2 |
| Challenger Busan | 2025/04/16 03:50 | Johannus Monday v Sanhui Shin | 3-6,4-6 |