Stadium: Court 7 Round: 44
| ITF Women Gifu Qual | 2018/04/29 01:00 | Satsuki Koike v Mami Hasegawa | 6-1,6-0 |
| ITF Women Osaka Qual | 2018/04/08 03:30 | Mami Hasegawa v Nicha Lertpitaksinchai | 6-2,6-7,4-6 |
| ITF Women Osaka Qual | 2018/04/07 04:00 | Nagomi Higashitani v Mami Hasegawa | 7-6,4-6,1-6 |
| ITF Women Kofu Qual | 2018/03/26 01:00 | Mami Hasegawa v Shiho Akita | 2-6,0-6 |
| ITF Women Kofu Qual | 2018/03/25 02:30 | Mami Hasegawa v Kotomi Takahata | 6-2,7-6 |
| ITF Women Kofu Qual | 2018/03/24 04:00 | Ling Zhang v Mami Hasegawa | 6-4,4-6,6-7 |
| ITF Women Nishi-Tama | 2018/03/22 03:00 | Mami Hasegawa v Giulia Gatto Monticone | 2-6,1-6 |
| ITF Women Nishi-Tama | 2018/03/21 02:00 | Mami Hasegawa v Makoto Yamaguchi | 6-4,6-2 |
| ITF Women Yeongwol | 2017/09/05 02:00 | Jin Ju Lee v Kwan Yau Ng | 2-6,6-3,6-7 |
| ITF Women Yeongwol | 2017/08/30 05:25 | Pei-Chi Lee v Jin Ju Lee | 3-6,7-5,6-2 |
| ITF Women Gimcheon | 2017/06/14 03:30 | Jin Ju Lee v Suzy Larkin | 3-6,3-6 |
| ITF Women Gimcheon | 2017/06/13 02:00 | Jin Ju Lee v Ai Kamiyoshihara | 6-0,6-1 |
| ITF Women Gimcheon | 2017/06/12 02:00 | Jin Ju Lee v Jeongyun Lee | 7-6,6-0 |
| ITF Women Gimcheon | 2017/06/07 01:00 | Jin Ju Lee v Yeong Won Jeong | 6-4,2-6,4-6 |
| ITF Women Gimcheon | 2017/06/06 01:00 | Jin Ju Lee v Sujin Yoon | 6-2,6-2 |
| ITF Women Gimcheon | 2017/06/05 02:00 | Jin Ju Lee v Xiangruyi Ji | 6-3,6-1 |