Stadium: Court 1 Round: 54
| ITF Women Nonthaburi Qual | 2018/07/07 04:00 | Mei Yamaguchi v Ramya Natarajan | 4-6,6-1,6-1 |
| ITF Women Kofu | 2018/06/13 02:40 | Misaki Doi v Mei Yamaguchi | 6-3,6-3 |
| ITF Women Karuizawa | 2018/05/25 03:35 | Mei Yamaguchi v Abbie Myers | 4-6,4-6 |
| ITF Women Karuizawa | 2018/05/24 06:15 | Ayano Shimizu v Mei Yamaguchi | 4-6,6-1,4-6 |
| ITF Women Karuizawa | 2018/05/24 01:15 | Mei Yamaguchi v Risa Ushijima | 3-6,7-5,7-6 |
| ITF Women Kurume Qual | 2018/05/13 09:50 | Mei Yamaguchi v Kotomi Takahata | 6-3,3-6,4-6 |
| ITF Women Fukuoka | 2018/05/09 04:20 | Mei Yamaguchi v Arina Rodionova | 0-6,5-7 |
| ITF Women Gifu | 2018/05/01 01:00 | Mei Yamaguchi v Momoko Kobori | 6-4,3-6,3-6 |
| ITF Women Nonthaburi Qual | 2018/07/07 06:40 | Prarisa Rachdanone v Gabriella Da Silva Fick | 0-6,0-6 |
| ITF Women Obidos | 2018/06/05 09:30 | Gabriella Da Silva Fick v Maia Lumsden | 4-6,6-0,3-6 |
| ITF Women Obidos Qual | 2018/06/04 09:30 | Gabriella Da Silva Fick v Carmen Garri Murcia | 6-1,6-2 |
| ITF Women Obidos | 2018/05/30 10:35 | Sofia Shapatava v Gabriella Da Silva Fick | 6-3,6-0 |
| ITF Women Oeiras | 2018/05/26 13:50 | Ylena In-Albon v Gabriella Da Silva Fick | 6-4,6-2 |
| ITF Women Oeiras | 2018/05/25 12:00 | Maria Joao Koehler v Gabriella Da Silva Fick | 4-6,6-3,1-6 |
| ITF Women Oeiras | 2018/05/24 17:30 | Cristina Adamescu v Gabriella Da Silva Fick | 2-6,6-3,3-6 |
| ITF Women Oeiras | 2018/05/23 12:45 | Gabriella Da Silva Fick v Yvonne Cavalle-Reimers | 6-3,6-2 |