| ITF Women Osaka Qual | 2018/04/09 01:00 | Misa Eguchi v Ramu Ueda | 3-6,4-6 |
| ITF Women Osaka Qual | 2018/04/08 03:30 | Ari Matsumoto v Ramu Ueda | 3-6,6-7 |
| ITF Women Osaka Qual | 2018/04/07 02:30 | Chinatsu Shimizu v Ramu Ueda | 1-6,4-6 |
| ITF Women Kashiwa Qual | 2018/04/02 03:15 | Ksenia Lykina v Ramu Ueda | 6-2,7-6 |
| ITF Women Kashiwa Qual | 2018/04/01 04:30 | Ramu Ueda v Jia-Qi Kang | 6-4,1-6,6-1 |
| ITF Women Canberra | 2018/03/28 00:30 | Ellen Perez v Ramu Ueda | 3-6,6-1,6-3 |
| ITF Women Canberra | 2018/03/21 01:25 | Ramu Ueda v Abbie Myers | 6-3,2-6,4-6 |
| ITF Women Canberra Qual | 2018/03/18 23:00 | Ramu Ueda v Annerly Poulos | 7-6,6-4 |
| ITF Women Kashiwa | 2018/04/05 01:00 | Na-Lae Han v Mayo Hibi | 2-6,4-6 |
| ITF Women Kashiwa | 2018/04/03 02:35 | Na-Lae Han v Momoko Kobori | 6-3,6-0 |
| ITF Women Nishi-Tama | 2018/03/20 01:00 | Na-Lae Han v Yuki Kristina Chiang | 3-6,4-6 |
| ITF Women Toyota | 2018/03/14 05:00 | Na-Lae Han v Bianca Andreescu | 3-6,3-6 |
| ITF Women Yokohama | 2018/03/10 06:10 | Harriet Dart v Na-Lae Han | 4-6,6-3,6-1 |
| ITF Women Yokohama | 2018/03/09 07:00 | Jia-Jing Lu v Na-Lae Han | 3-6,4-6 |
| ITF Women Yokohama | 2018/03/08 01:00 | Na-Lae Han v Junri Namigata | 6-3,6-1 |
| ITF Women Yokohama | 2018/03/06 04:25 | Dejana Radanovic v Na-Lae Han | 1-6,4-6 |