Stadium: Court C1 Round: 25 Ground: Hardcourt outdoor
| Nonthaburi, Simples W-WITF-THA-09A | 2018/08/13 02:00 | Chihiro Muramatsu v Mana Ayukawa | 5-7,5-7 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/08/07 02:00 | Chihiro Muramatsu v Dabin Kim | 1-6,1-6 |
| ITF Women Contrexeville Qual | 2018/07/08 08:00 | Yerolymos, Margot 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 |
| Karuizawa, Singles W-WITF-JPN-10A | 2018/05/22 01:00 | Chihiro Muramatsu v Shiho Akita | 6-2,6-4 |
| Tsukuba, Singles W-WITF-JPN-09A | 2018/08/20 02:50 | Michika Ozeki v Nishimoto, Megumi | 6-3,7-5 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/08/15 02:00 | Michika Ozeki v Xiyu Wang | 1-6,2-6 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/08/13 02:00 | Michika Ozeki v Shiho Akita | 6-1,6-2 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/08/12 03:55 | Michika Ozeki v Lorbergs, Genevieve | 6-4,6-2 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/08/11 06:45 | Michika Ozeki v Inoue, Akari | 6-3,6-4 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/08/05 04:15 | Michika Ozeki v Ayumi Koshiishi | 7-6,5-7,3-6 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/08/04 07:40 | Michika Ozeki v Rada Manataweewat | 6-0,6-3 |
| ITF Women Jakarta | 2018/07/19 04:30 | Sabatini, Fitriani v Michika Ozeki | 6-2,6-1 |