| ITF M15 Maanshan MD | 03/06 05:00 | - | Sumizawa/Takahashi v Ichikawa/Matsuda | 6-7,7-5,0-1 | |
| ITF M15 Maanshan MD | 03/04 03:30 | - | Kawahashi/Masabayashi v Sumizawa/Takahashi | 6-1,2-6,0-1 | |
| Challenger Burnie MD | 01/31 04:30 | 26 | Sumizawa/Takahashi v Sekiguchi/Uchiyama | 3-6,1-6 |