Stadium: Court B2 Round: 27 Ground: Hardcourt outdoor
| ITF Women Toowoomba | 2017/10/05 01:25 | Momoko Kobori v Chihiro Muramatsu | 1-6,3-6 |
| ITF Women Tsukuba | 2018/08/23 00:30 | Hiroko Kuwata v Chihiro Muramatsu | 6-7,2-6 |
| ITF Women Tsukuba | 2018/08/22 00:30 | Chihiro Muramatsu v Michika Ozeki | 6-1,6-2 |
| 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 Tsukuba | 2018/08/23 00:30 | Kanako Morisaki v Momoko Kobori | 7-6,3-6,4-6 |
| ITF Women Tsukuba | 2018/08/21 00:30 | Riko Sawayanagi v Momoko Kobori | 4-6,3-6 |
| WTA Nanchang | 2018/07/23 09:00 | Momoko Kobori v Fang Ying Xun | 6-7,0-6 |
| WTA Nanchang Qual | 2018/07/22 11:00 | Momoko Kobori v Shilin Xu | 6-4,2-6,4-6 |
| WTA Nanchang Qual | 2018/07/21 10:35 | Momoko Kobori v Qianhui Tang | 6-4,6-2 |
| ITF Women Contrexeville | 2018/07/11 09:30 | Ysaline Bonaventure v Momoko Kobori | 6-3,7-6 |
| ITF Women Denain | 2018/07/04 08:30 | Mari Osaka v Momoko Kobori | 6-1,6-1 |
| ITF Women Perigueux | 2018/06/25 09:30 | Momoko Kobori v Cristina Bucsa | 1-6,3-6 |