| ITF Women Gimcheon | 2018/08/13 01:00 | SinHee Kim v Chihiro Takayama | 6-0,3-6,6-2 |
| ITF Women Jakarta | 2018/07/18 03:00 | Chihiro Takayama v Suzuho Oshino | 7-6,3-6,2-6 |
| ITF Women Jakarta | 2018/07/16 03:00 | Chihiro Takayama v Rhiannon McBlane | 6-4,6-1 |
| 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 Gimcheon | 2018/08/12 01:00 | Eunseo Kim v Sandeul Kim | 6-3,6-4 |
| ITF Women Daegu Qual | 2018/06/17 01:00 | Sandeul Kim v Nagisa Morimoto | 1-6,0-6 |