| Tsukuba, Doubles W-ITF-JPN-13A | 08/22 07:00 | 27 | Koshiishi A / Matsuda M v Kobori M / Okamura K | 4-6,4-6 | |
| Tsukuba, Doubles W-ITF-JPN-13A | 08/21 05:00 | 26 | Koshiishi A / Matsuda M v Hosonuma C / Takahata K | 6-2,6-2 | |
| Tsukuba, Doubles W-ITF-JPN-13A | 08/21 03:40 | 26 | Koshiishi A / Matsuda M v Inoue A / Inoue M | CANC |