| ITF M25 Launceston | 2025/02/24 23:00 | Issei Okamura v Ji Sung Nam | 6-7,3-6 |
| ITF M25 Launceston | 2025/02/24 01:01 | Issei Okamura v Adrian Arcon | 7-6,6-1 |
| ITF M25 Burnie | 2025/02/17 00:00 | Joshua Charlton v Issei Okamura | 6-1,6-3 |
| ITF M25 Timaru | 2025/02/12 21:00 | Yu Hsiou Hsu v Issei Okamura | 6-1,6-0 |
| ITF M25 Timaru | 2025/02/11 22:30 | Issei Okamura v Lev Gorb | 6-2,6-1 |
| ITF M25 Timaru | 2025/02/09 22:30 | Issei Okamura v Stefan Storch | 6-4,7-6 |
| UTR Pro Yokohama | 2025/02/01 06:15 | Issei Okamura v Kotaro Mochizuki | 2-6,4-6 |
| UTR Pro Yokohama | 2025/02/01 00:00 | Issei Okamura v Keisuke Ota | 6-2,7-5 |