Stadium: Court 5 Round: 44
| ITF Women Gyeongsan Qual | 2018/06/10 02:00 | Nagisa Morimoto v Han Byeol Lee | 6-0,6-3 |
| ITF Women Sangju Qual | 2018/06/03 01:00 | Nagisa Morimoto v Sakura Hosogi | 4-6,6-2,5-7 |
| ITF Women Gifu Qual | 2018/04/29 01:00 | Tammi Patterson v Nagisa Morimoto | 7-5,6-3 |
| ITF Women Osaka Qual | 2018/04/07 04:00 | Nagisa Morimoto v Nicha Lertpitaksinchai | 0-6,3-6 |
| ITF Women Kofu Qual | 2018/03/24 03:00 | Nagisa Morimoto v Rebecca Marino | 2-6,1-6 |
| ITF Women Toyota Qual | 2018/03/11 01:00 | Julia Glushko v Nagisa Morimoto | 6-0,6-0 |
| ITF Women Hammamet | 2018/02/07 11:40 | Nagisa Morimoto v Melania Delai | 3-6,1-6 |
| ITF Women Hammamet | 2018/02/04 10:00 | Anastasia Bursa v Nagisa Morimoto | 4-6,2-6 |
| ITF Women Sangju Qual | 2018/06/04 05:00 | Mami Hasegawa v Jin Ju Lee | 4-6,4-6 |
| 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 |