| ITF M25 Canberra MD | 03/29 05:15 | 26 | Puttergill/Walkin v Sumizawa/Takeuchi | 6-2,6-2 | |
| ITF M25 Canberra MD | 03/22 07:30 | 26 | Sweeny/Tu v Sumizawa/Takeuchi | 6-3,6-3 | |
| ITF M15 Nanchang MD | 10/01 04:50 | 26 | Xie/Yang v Sumizawa/Takeuchi | 6-3,4-6,10-7 | |
| ITF M15 Karuizawa MD | 05/30 05:55 | 27 | Kawahashi/Moritani v Sumizawa/Takeuchi | 3-6,6-4,10-7 | |
| ITF M15 Karuizawa MD | 05/28 07:05 | 26 | Nakamura/Ono v Sumizawa/Takeuchi | 3-6,4-6 |