Round: 44 Ground: Hardcourt outdoor
| ITF - M15 Sharm El Sheikh | 2020/03/11 08:00 | Issei Okamura v Noah Thurner | 6-1,6-4 |
| ITF - M15 Sharm El Sheikh | 2020/03/03 08:00 | Issei Okamura v Volodymyr Uzhylovskyi | 7-6,4-6,6-10 |
| ITF - M15 Sharm El Sheikh | 2020/02/26 08:00 | Issei Okamura v Ryota Tanuma | 3-6,2-6 |
| ITF - M15 Sharm El Sheikh | 2020/02/25 08:00 | Issei Okamura v Phuong Van Nguyen | 6-3,4-6,10-6 |
| ITF - M15 Sharm El Sheikh | 2020/02/24 09:00 | Issei Okamura v Ismael C R Mzai | 6-3,3-6,10-5 |
| ITF - M15 Sharm El Sheikh | 2020/02/20 09:40 | Issei Okamura v Jacopo Berrettini | 1-6,2-6 |
| ITF - M15 Sharm El Sheikh | 2020/02/19 15:40 | Issei Okamura v Piotr Grynkowski | 6-3,7-5 |
| ITF - M25 Nonthaburi | 2020/01/26 07:50 | Issei Okamura v Palaphoom Kovapitukted | 4-6,1-6 |