Stadium: Court 8 Round: 26 Ground: Hardcourt outdoor
| ITF Japan F6 MD | 2018/04/14 01:00 | Kono/Sakai v Imai/Niki | 4-6,3-6 |
| ITF Japan F6 MD | 2018/04/13 05:45 | Gao/Li v Kono/Sakai | 6-3,5-7,8-10 |
| ITF Japan F6 MD | 2018/04/12 05:45 | Ehara/Katayama v Kono/Sakai | 6-7,4-6 |
| ITF Japan F6 MD | 2018/04/11 02:55 | Tanuma/Yamasaki v Kono/Sakai | 6-7,3-6 |
| ITF Japan F2 MD | 2017/03/16 06:45 | Kono/Sakai v Hoang Ly/Okamura | 6-7,6-3,4-10 |
| ITF Japan F2 MD | 2017/03/14 08:10 | Moritani/Shiga v Kono/Sakai | 3-6,5-7 |