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 |
| Nonthaburi, Singles M-ITF-THA-01A | 2020/01/26 07:50 | Issei Okamura v Kovapitukted, Palaphoom | 4-6,1-6 |
| Hong Kong, Simples M-ITF-HKG-01A | 2020/01/08 06:50 | El Midhawy, Adam v Issei Okamura | 4-6,6-2,6-3 |
| Hong Kong, Simples M-ITF-HKG-01A | 2020/01/07 02:00 | Issei Okamura v Kaewsuto, Chayanon | 6-0,6-0 |
| Hong Kong, Simples M-ITF-HKG-01A | 2020/01/06 02:00 | Issei Okamura v Geiwald, Douglas | 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 | Kim, Cheong-Eui v Issei Okamura | 6-4,4-6,6-4 |
| ITF - M15 Sharm El Sheikh | 2020/02/19 08:00 | Ivanov, Simon Anthony 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 | Uzhylovsky, Vladimir v Jacopo Berrettini | 6-7,7-6,3-6 |
| ITF - M15 Sharm El Sheikh | 2020/02/12 11:15 | Dzhanashia, Shalva 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 | Dambrosi, Giacomo 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 Dubrivnyy, Artem | 2-6,4-6 |