Stadium: Court 10 Round: 62
| ITF Women Hammamet | 2018/02/25 09:00 | Veronika Erjavec v Nagomi Higashitani | 6-0,6-1 |
| ITF Women Hammamet | 2018/02/18 08:30 | Echeverria Alam, Nadia v Nagomi Higashitani | 4-6,7-6,6-1 |
| ITF Women Hammamet | 2018/02/17 09:00 | Sara Lanca v Nagomi Higashitani | 2-6,3-6 |
| ITF Women Hammamet | 2018/02/13 09:00 | Sireix, Camille v Nagomi Higashitani | 6-3,6-2 |
| ITF Women Hammamet | 2018/02/11 09:00 | Nagomi Higashitani v Tebourbi, Mayssa | 6-1,6-1 |
| ITF Women Kyoto | 2017/09/02 06:00 | Yui Chikaraishi v Nagomi Higashitani | 6-4,6-3 |
| ITF Women Nanao Qual | 2017/08/27 01:00 | Hondo, Sakura v Nagomi Higashitani | 6-1,7-5 |
| ITF Women Anning Qual | 2017/07/01 08:00 | Nur Haliza, Deria v Nagomi Higashitani | 6-1,6-2 |
| Kofu, Singles Qualifying W-WITF-JPN-02A | 2018/03/26 01:00 | Hasegawa, Mami v Shiho Akita | 2-6,0-6 |
| Kofu, Singles Qualifying W-WITF-JPN-02A | 2018/03/25 02:30 | Hasegawa, Mami v Takahata, Kotomi | 6-2,7-6 |
| Kofu, Singles Qualifying W-WITF-JPN-02A | 2018/03/24 04:00 | Zhang, Ling v Hasegawa, Mami | 6-4,4-6,6-7 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/22 03:00 | Hasegawa, Mami v Gatto-Monticone, Giulia | 2-6,1-6 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/21 02:00 | Hasegawa, Mami v Makoto Yamaguchi | 6-4,6-2 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/19 01:00 | Yukina Saigo v Hasegawa, Mami | 3-6,4-6 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/18 01:00 | Ishino, Aoi v Hasegawa, Mami | 5-7,0-6 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/17 01:00 | Hasegawa, Mami v Kajuru, Ange Oby | 6-4,2-6,6-2 |