Stadium: Court 1 Round: 28 Ground: Hardcourt outdoor
| ITF Guam F1 MD | 2018/06/21 03:00 | Ehara/Katayama v Adamson/Hunt | 6-0,6-3 |
| ITF Guam F1 MD | 2018/06/20 06:00 | Ehara/Katayama v Bajpai/Hill | 6-2,6-1 |
| 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 Guam F1 MD | 2018/06/21 01:00 | Shimizu/Takeuchi v Tagashira/Uesugi | 7-6,6-3 |
| ITF Guam F1 MD | 2018/06/19 07:00 | Shimizu/Takeuchi v Camacho/Ono | 6-2,7-5 |