Stadium: Court 3 Round: 54
| ITF Women Kurume Qual | 2018/05/13 10:10 | Yuki Kristina Chiang v Yuka Hosoki | 2-6,6-3,6-3 |
| ITF Women Fukuoka Qual | 2018/05/06 01:00 | Sakura Hondo v Yuki Kristina Chiang | 6-2,6-3 |
| ITF Women Gifu Qual | 2018/04/29 04:20 | Mei Yamaguchi v Yuki Kristina Chiang | 6-1,6-2 |
| ITF Women Osaka Qual | 2018/04/09 01:00 | Yuki Kristina Chiang v Nicha Lertpitaksinchai | 1-6,3-6 |
| ITF Women Osaka Qual | 2018/04/08 02:00 | Yuki Kristina Chiang v Kei Kato | 3-6,6-4,6-2 |
| ITF Women Kashiwa Qual | 2018/04/01 05:00 | Momoko Kobori v Yuki Kristina Chiang | 6-2,6-3 |
| ITF Women Kofu Qual | 2018/03/26 01:00 | Ksenia Lykina v Yuki Kristina Chiang | 7-5,7-5 |
| ITF Women Kofu Qual | 2018/03/25 01:00 | Ying Zhang v Yuki Kristina Chiang | 6-1,3-6,1-6 |
| ITF Women Kurume Qual | 2018/05/13 09:50 | Mei Yamaguchi v Kotomi Takahata | 6-3,3-6,4-6 |
| ITF Women Gifu Qual | 2018/04/29 01:00 | Emily Webley-Smith v Kotomi Takahata | 6-3,6-2 |
| ITF Women Quanzhou Qual | 2018/04/21 07:45 | Wushuang Zheng v Kotomi Takahata | 6-1,6-1 |
| ITF Women Kofu Qual | 2018/03/25 02:30 | Mami Hasegawa v Kotomi Takahata | 6-2,7-6 |
| ITF Women Kofu Qual | 2018/03/24 04:00 | Chie Kezuka v Kotomi Takahata | 4-6,5-7 |
| ITF Women Nishi-Tama | 2018/03/19 01:00 | Kotomi Takahata v Michiru Furuya | 7-6,5-7,4-6 |
| ITF Women Nishi-Tama | 2018/03/18 01:00 | Kotomi Takahata v Kiko Nishizato | 6-3,6-3 |
| ITF Women Nishi-Tama | 2018/03/17 04:00 | Kotomi Takahata v Sae Haraguchi | 6-1,6-1 |