Stadium: Court 6 Round: 54 Ground: Hardcourt outdoor
| ITF Women Hong Kong | 2018/07/10 03:50 | Chihiro Takayama v Ashmitha Easwaramurthi | 2-6,5-7 |
| ITF Women Daegu Qual | 2018/06/18 03:25 | Hyojung Yea v Chihiro Takayama | 6-3,6-0 |
| ITF Women Gyeongsan Qual | 2018/06/11 02:00 | Chihiro Takayama v Ah Song | 2-6,4-6 |
| ITF Women Sangju Qual | 2018/06/04 03:30 | Chihiro Takayama v Hyojung Yea | 2-6,1-6 |
| 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 02:30 | Ari Matsumoto v Chihiro Takayama | 1-6,6-3,6-2 |
| ITF Women Kurume Qual | 2018/05/13 09:35 | Chihiro Takayama v Tori Kinard | 2-6,7-5,6-3 |
| ITF Women Fukuoka Qual | 2018/05/06 02:20 | Aiko Yoshitomi v Chihiro Takayama | 6-2,6-3 |
| ITF Women Solo | 2018/07/10 03:25 | Rhiannon McBlane v Ani Vangelova | 2-6,3-6 |