Stadium: C Round: 62
| ITF Women Launceston | 2018/02/06 00:50 | Chihiro Muramatsu v Allie Kiick | 0-6,1-6 |
| ITF Women Launceston Qual | 2018/02/03 23:00 | Chihiro Muramatsu v Giorgie Jones | 6-0,6-1 |
| ITF Women Burnie | 2018/01/29 23:00 | Viktorija Golubic v Chihiro Muramatsu | 6-3,6-2 |
| ITF Women Burnie Qual | 2018/01/28 23:00 | Chihiro Muramatsu v Ramu Ueda | 6-2,6-0 |
| ITF Women Burnie Qual | 2018/01/28 04:25 | Shuko Aoyama v Chihiro Muramatsu | 6-7,3-6 |
| ITF Women Burnie Qual | 2018/01/27 23:00 | Alana Parnaby v Chihiro Muramatsu | 2-6,0-6 |
| ITF Women Orlando | 2018/01/18 18:00 | Chihiro Muramatsu v Grace Min | 6-7,1-6 |
| ITF Women Orlando | 2018/01/17 17:20 | Chihiro Muramatsu v Reka-Luca Jani | 6-2,6-1 |
| ITF Women Dubai | 2017/12/11 10:05 | Ayumi Morita v Mihaela Buzarnescu | 0-6,1-6 |
| WTA Taipei Qual | 2017/01/28 06:30 | Kai-Lin Zhang v Ayumi Morita | 3-6,2-6 |
| Australian Open 2017 Women Qual | 2017/01/12 00:50 | Julia Boserup v Ayumi Morita | 6-1,6-2 |
| Wimbledon Women Qual | 2015/06/23 13:25 | Nao Hibino v Ayumi Morita | 6-1,7-5 |
| Billie Jean King Cup | 2015/04/19 05:05 | Ayumi Morita v Aliaksandra Sasnovich | 7-6,4-6,6-4 |
| Wimbledon Women Qual | 2014/06/18 12:10 | Lesia Tsurenko v Ayumi Morita | 7-6,6-1 |
| Wimbledon Women Qual | 2014/06/17 12:00 | Ayumi Morita v Alexandra Panova | 6-2,2-6,6-3 |
| WTA Kuala Lumpur | 2014/04/14 11:20 | Ayumi Morita v Lyudmyla Kichenok | 4-6,2-6 |