| ITF Women Makinohara Qual | 10/09 00:30 | 54 | Mami Hasegawa v Mei Yamaguchi | 7-5,6-1 | |
| ITF Women Makinohara Qual | 10/08 03:30 | 54 | Varvara Kuznetsova v Mami Hasegawa | 4-6,2-6 | |
| ITF Women Hua Hin Qual | 09/09 03:00 | 54 | Tamaryn Hendler v Mami Hasegawa | 6-2,6-1 | |
| ITF Women Nishi-Tama | 03/18 02:00 | 62 | Kei Kato v Mami Hasegawa | Retired | |
| ITF Women Nanjing Qual | 02/26 02:00 | 44 | Shuyue Ma v Mami Hasegawa | 6-3,7-5 | |
| ITF Women Nanjing Qual | 02/25 02:00 | 44 | Pinyi Zuo v Mami Hasegawa | 4-6,0-6 | |
| ITF Women Toyota Qual | 11/13 04:00 | 54 | Mami Hasegawa v Akari Inoue | 2-6,6-4,4-6 | |
| ITF Women Makinohara Qual | 10/09 00:30 | 54 | Chihiro Muramatsu v Mami Hasegawa | 6-1,6-1 |