Stadium: Court 9 Round: 25
| ITF Women Karuizawa | 2018/05/22 03:05 | Kanako Morisaki v Yukina Saigo | 4-6,6-3,6-2 |
| ITF Women Karuizawa Qual | 2018/05/21 02:55 | Yukina Saigo v Chihiro Takayama | 6-1,6-1 |
| ITF Women Kurume Qual | 2018/05/14 01:00 | Yukina Saigo v Sakura Hondo | 3-6,6-4,5-7 |
| ITF Women Kurume Qual | 2018/05/13 00:30 | Moyuka Uchijima v Yukina Saigo | 6-1,3-6,1-6 |
| ITF Women Fukuoka Qual | 2018/05/07 03:55 | Yukina Saigo v Erina Hayashi | 4-6,5-7 |
| ITF Women Fukuoka Qual | 2018/05/06 04:30 | Yukina Saigo v Nagisa Imamura | 7-5,6-4 |
| ITF Women Osaka Qual | 2018/04/09 03:05 | Ya-Hsuan Lee v Yukina Saigo | 6-2,6-2 |
| ITF Women Osaka Qual | 2018/04/08 03:30 | Haruna Arakawa v Yukina Saigo | 5-7,3-6 |
| ITF Women Alkmaar | 2018/06/29 09:00 | Tamaryn Hendler v Julyette M J Steur | 6-2,7-5 |
| ITF Women Alkmaar | 2018/06/28 10:40 | Sem Wensveen v Julyette M J Steur | 3-6,3-6 |
| ITF Women Alkmaar | 2018/06/27 09:00 | Madison Bourguignon v Julyette M J Steur | 2-6,3-6 |
| ITF Women Kaltenkirchen | 2018/06/21 08:30 | Anna Gabric v Julyette M J Steur | 6-2,6-1 |
| ITF Women Kaltenkirchen | 2018/06/19 09:00 | Arina Gabriela Vasilescu v Julyette M J Steur | 6-3,1-6,5-7 |
| ITF Women Hammamet | 2018/05/25 09:00 | Julyette M J Steur v Tayisiya Morderger | 3-6,6-7 |
| ITF Women Hammamet | 2018/05/24 11:20 | Julyette M J Steur v Lou Brouleau | 7-6,6-7,6-0 |
| ITF Women Hammamet | 2018/05/22 09:30 | Julyette M J Steur v Jelena Stojanovic | 6-2,6-0 |