| UTR Pro Kakogawa Women | 11/28 02:00 | 53 | Catholine Miyu Ono v Aya Otsuka | 2-6,6-7 | |
| UTR Pro Kakogawa Women | 11/27 05:10 | 28 | Riko Ueda v Aya Otsuka | 7-5,6-1 | |
| UTR Pro Kakogawa Women | 11/27 00:00 | - | Amane Hattori v Aya Otsuka | 6-2,6-1 | |
| UTR Pro Kakogawa Women | 11/26 04:35 | - | Miku Kitaoka v Aya Otsuka | 7-5,6-1 | |
| UTR Pro Kakogawa Women | 11/24 05:15 | - | Yuka Matsumoto v Aya Otsuka | 6-3,3-6,6-2 |