Stadium: Court 1 Round: 26 Ground: Hardcourt outdoor
| ITF China F8 MD | 2018/06/05 05:15 | Ji/Yu v Ehara/Katayama | 6-3,5-7,10-4 |
| 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 04:45 | Ehara/Katayama v Kibi/Onozawa | 6-3,6-2 |
| ITF Japan F5 MD | 2018/04/04 07:40 | Ehara/Katayama v Fujii/Ochi | 6-2,3-6,6-10 |
| ITF Japan F5 MD | 2018/04/02 07:40 | Ehara/Katayama v Chiu/Grills | 6-4,6-0 |
| ITF Japan F3 MD | 2018/03/23 02:45 | Seol/Song v Ehara/Katayama | 5-7,6-7 |
| ITF Japan F3 MD | 2018/03/23 01:30 | Kikuchi/Takeshima v Ehara/Katayama | 6-7,5-7 |
| ITF Japan F3 MD | 2018/03/22 09:10 | Lee/Lim v Ehara/Katayama | 6-7,3-6 |