Stadium: Court 3 Round: 54
| ITF Women Gifu Qual | 2018/04/29 09:40 | Aiko Yoshitomi v Makoto Ninomiya | 4-6,1-6 |
| ITF Women Gifu Qual | 2018/04/29 05:50 | Abigail Tere-Apisah v Aiko Yoshitomi | 6-3,4-6,4-6 |
| ITF Women Osaka Qual | 2018/04/07 05:30 | Aiko Yoshitomi v Moyuka Uchijima | 6-4,2-6,6-7 |
| ITF Women Kashiwa Qual | 2018/04/01 05:00 | Aiko Yoshitomi v Sunam Jeong | 1-6,6-7 |
| ITF Women Kofu | 2018/03/28 01:00 | Lin Zhu v Aiko Yoshitomi | 6-1,6-3 |
| ITF Women Kofu Qual | 2018/03/26 01:00 | Yuxuan Zhang v Aiko Yoshitomi | 6-7,6-2,2-6 |
| ITF Women Kofu Qual | 2018/03/25 01:00 | Mayuka Aikawa v Aiko Yoshitomi | 6-7,5-7 |
| ITF Women Kofu Qual | 2018/03/24 00:30 | Eimi Friant v Aiko Yoshitomi | 1-6,2-6 |
| ITF Women Osaka Qual | 2018/04/07 05:30 | Chihiro Takayama v Ayumi Miyamoto | 2-6,4-6 |
| ITF Women Kofu Qual | 2018/03/24 00:30 | Ksenia Lykina v Chihiro Takayama | 7-6,6-3 |
| ITF Women Nishi-Tama | 2018/03/19 01:00 | So-Ra Lee v Chihiro Takayama | 6-3,7-5 |
| ITF Women Nishi-Tama | 2018/03/18 01:00 | Utaka Kishigami v Chihiro Takayama | 2-6,4-6 |
| ITF Women Nishi-Tama | 2018/03/17 01:00 | Suzuka Furukawa v Chihiro Takayama | 4-6,2-6 |
| ITF Women Toyota Qual | 2018/03/10 03:00 | Chihiro Takayama v Misa Eguchi | 1-6,4-6 |
| ITF Women Antalya | 2018/01/29 08:00 | Rebecca Marino v Chihiro Takayama | 6-3,6-0 |
| ITF Women Antalya | 2018/01/28 07:30 | Maria Solnyshkina v Chihiro Takayama | 6-7,1-6 |