Stadium: Court 6 Round: 62 Ground: Synthetic outdoor
| Hamamatsu, Singles W-WITF-JPN-12A | 2018/10/14 02:00 | Yukina Saigo v Kishigami, Utaka | 6-4,6-2 |
| Makinohara, Singles Qualifying W-WITF-JPN-15A | 2018/10/08 00:30 | Yukina Saigo v Kisa Yoshioka | 6-7,6-3,3-6 |
| ITF Women Haren | 2018/08/31 09:00 | Yukina Saigo v Natalia Siedliska | 4-6,4-6 |
| ITF Women Haren | 2018/08/30 13:05 | Yukina Saigo v Emma Lene | 6-2,6-2 |
| ITF Women Haren | 2018/08/28 09:50 | Yukina Saigo v Husak, Regina | 6-7,6-1,6-1 |
| ITF Women Wanfercee-Baulet | 2018/08/24 15:30 | Yukina Saigo v Caroline Romeo | 6-7,4-6 |
| ITF Women Wanfercee-Baulet | 2018/08/22 12:15 | Yukina Saigo v Kalaitzis, Victoria | 7-5,5-7,6-3 |
| ITF Women Wanfercee-Baulet | 2018/08/21 09:00 | Yukina Saigo v Vanhoutte, Chelsea | 6-1,3-6,7-6 |
| Hamamatsu, Singles W-WITF-JPN-12A | 2018/10/14 02:00 | Shimizu, Chinatsu v Terami, Karin | 6-0,6-2 |
| Makinohara, Singles Qualifying W-WITF-JPN-15A | 2018/10/08 00:30 | Hondo, Sakura v Shimizu, Chinatsu | 6-3,4-6,6-2 |
| Makinohara, Singles Qualifying W-WITF-JPN-15A | 2018/10/07 00:30 | Shimizu, Chinatsu v Berezov, Anastasia | 6-3,6-0 |
| ITF Women Kyoto | 2018/09/04 08:50 | Kajitani, Robu v Shimizu, Chinatsu | 6-4,6-2 |
| ITF Women Nanao | 2018/08/26 01:00 | Mayuka Aikawa v Shimizu, Chinatsu | 6-3,6-3 |
| Tsukuba, Singles W-WITF-JPN-09A | 2018/08/19 00:30 | Akiko Omae v Shimizu, Chinatsu | 6-2,6-3 |
| Kofu, Singles Qualifying W-WITF-JPN-02A | 2018/06/09 05:30 | Shimizu, Chinatsu v Lisa-Marie Rioux | 5-7,3-6 |
| ITF Women Fukuoka Qual | 2018/05/07 01:00 | Olivia Tjandramulia v Shimizu, Chinatsu | 7-5,6-3 |