Stadium: Court B Round: 25
| ITF Women Yokohama Qual | 2017/03/05 06:00 | Chihiro Takayama v Kotomi Takahata | 3-6,7-5,2-6 |
| ITF Women Nanao | 2018/08/26 08:30 | Yidi Yang v Chihiro Takayama | 6-1,6-3 |
| ITF Women Gimcheon | 2018/08/22 01:00 | Chihiro Takayama v Hwiwon Wi | 4-6,0-6 |
| ITF Women Gimcheon | 2018/08/21 01:00 | Chihiro Takayama v Ashmitha Easwaramurthi | 6-3,6-3 |
| ITF Women Gimcheon | 2018/08/20 02:00 | Nikita Uberoi v Chihiro Takayama | 3-6,3-6 |
| ITF Women Gimcheon | 2018/08/19 01:00 | Chihiro Takayama v Sandeul Kim | 6-3,6-2 |
| 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 Nanao | 2018/08/29 05:20 | Kotomi Takahata v Haruka Kaji | 6-7,2-6 |
| ITF Women Nanao | 2018/08/27 01:00 | Kotomi Takahata v Minami Shuto | 7-6,6-3 |
| ITF Women Nanao | 2018/08/26 03:25 | Kotomi Takahata v Ayano Sonoda | 6-4,6-0 |
| ITF Women Tsukuba | 2018/08/19 03:00 | Kumi So v Kotomi Takahata | 6-4,6-4 |
| ITF Women Taipei | 2018/07/24 03:55 | Chin-Wei Chan v Kotomi Takahata | 4-6,6-3,6-3 |
| ITF Women Astana Qual | 2018/07/14 10:45 | Daria Kruzhkova v Kotomi Takahata | 6-2,6-1 |
| ITF Women Tianjin Qual | 2018/07/09 02:00 | Kotomi Takahata v Mei Xu Wu | 3-6,6-2,2-6 |
| ITF Women Tianjin Qual | 2018/07/08 06:35 | Kotomi Takahata v Qian Yang | 6-0,6-2 |