Stadium: Court 4 Round: 26 Ground: Hardcourt outdoor
| 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 |
| ITF M15 - Hong Kong | 2020/01/08 06:50 | Adam El Mihdawy v Issei Okamura | 4-6,6-2,6-3 |
| ITF M15 - Hong Kong | 2020/01/07 02:00 | Issei Okamura v Chayanon Kaewsuto | 6-0,6-0 |
| ITF M15 - Hong Kong | 2020/01/06 02:00 | Issei Okamura v Douglas Geiwald | 6-2,6-1 |
| ITF M15 - Cancun | 2019/11/15 19:35 | Issei Okamura v Mariano Kestelboim | 4-6,1-6 |
| ITF M15 - Cancun | 2019/11/05 16:35 | Mateus Alves v Issei Okamura | 6-3,6-2 |
| ITF M15 - Changwon | 2019/10/15 03:10 | Cheong-Eui Kim v Issei Okamura | 6-4,4-6,6-4 |
| ITF M15 - Sharm El Sheikh | 2020/02/19 08:00 | Simon A Ivanov v Jacopo Berrettini | 5-7,4-6 |
| ITF M15 - Sharm El Sheikh | 2020/02/14 08:00 | Egor Agafonov v Jacopo Berrettini | 3-6,6-3,6-4 |
| ITF M15 - Sharm El Sheikh | 2020/02/13 10:50 | Volodymyr Uzhylovskyi v Jacopo Berrettini | 6-7,7-6,3-6 |
| ITF M15 - Sharm El Sheikh | 2020/02/12 11:15 | Shalva Dzhanashia v Jacopo Berrettini | 4-6,2-6 |
| ITF - M15 - Monastir | 2020/01/31 10:40 | Sebastian Baez v Jacopo Berrettini | 6-2,6-3 |
| ITF - M15 - Monastir | 2020/01/30 11:10 | Giacomo Dambrosi v Jacopo Berrettini | 4-6,6-7 |
| ITF - M15 - Monastir | 2020/01/28 08:30 | Pablo Llamas Ruiz v Jacopo Berrettini | 6-7,5-7 |
| ITF - M15 - Monastir | 2020/01/21 08:30 | Jacopo Berrettini v Artem Dubrivnyy | 2-6,4-6 |