Stadium: Court C1 Round: 25 Ground: Hardcourt outdoor
| ITF Women Nonthaburi | 2018/08/13 02:00 | Chihiro Muramatsu v Mana Ayukawa | 5-7,5-7 |
| ITF Women Nonthaburi | 2018/08/07 02:00 | Chihiro Muramatsu v Dabin Kim | 1-6,1-6 |
| ITF Women Contrexeville Qual | 2018/07/08 08:00 | Margot Yerolymos v Chihiro Muramatsu | 6-3,7-5 |
| ITF Women Denain | 2018/07/04 11:35 | Chihiro Muramatsu v Valeriya Strakhova | 1-6,4-6 |
| ITF Women Denain Qual | 2018/07/02 08:00 | Chihiro Muramatsu v Anna Danilina | 4-6,2-6 |
| ITF Women Denain Qual | 2018/07/01 14:30 | Chihiro Muramatsu v Maneva Rakotomalala | 6-2,6-3 |
| ITF Women Perigueux | 2018/06/26 09:15 | Moyuka Uchijima v Chihiro Muramatsu | 3-6,6-1,6-2 |
| ITF Women Karuizawa | 2018/05/22 01:00 | Chihiro Muramatsu v Shiho Akita | 6-2,6-4 |
| ITF Women Tsukuba | 2018/08/20 02:50 | Michika Ozeki v Megumi Nishimoto | 6-3,7-5 |
| ITF Women Nonthaburi | 2018/08/15 02:00 | Michika Ozeki v Xiyu Wang | 1-6,2-6 |
| ITF Women Nonthaburi | 2018/08/13 02:00 | Michika Ozeki v Shiho Akita | 6-1,6-2 |
| ITF Women Nonthaburi | 2018/08/12 03:55 | Michika Ozeki v Genevieve Lorbergs | 6-4,6-2 |
| ITF Women Nonthaburi | 2018/08/11 06:45 | Michika Ozeki v Akari Inoue | 6-3,6-4 |
| ITF Women Nonthaburi | 2018/08/05 04:15 | Michika Ozeki v Ayumi Koshiishi | 7-6,5-7,3-6 |
| ITF Women Nonthaburi | 2018/08/04 07:40 | Michika Ozeki v Rada Manataweewat | 6-0,6-3 |
| ITF Women Jakarta | 2018/07/19 04:30 | Fitriani Sabatini v Michika Ozeki | 6-2,6-1 |