Estádio: Court 3 Round: 27 Ground: Hardcourt outdoor
| ITF - China F1 - Masculino | 2018/01/11 02:30 | Ryota Tanuma v Issei Okamura | 6-1,6-2 |
| ITF - China F13 | 2016/07/22 05:20 | Ryota Tanuma v Issei Okamura | 3-6,6-7 |
| ITF - Espanha F14 | 2016/05/16 09:00 | Issei Okamura v Ryota Tanuma | 0-6,3-6 |
| ITF - Taipé Chinesa F1 | 2015/08/21 02:00 | Issei Okamura v Ryota Tanuma | 6-4,3-6,6-3 |
| ITF - Japão F5 | 2015/06/01 04:10 | Issei Okamura v Ryota Tanuma | 6-7,4-6 |