Stadium: Ct 10 Round: 25
| ITF Women Gifu | 2018/05/01 01:00 | Chihiro Muramatsu v Erika Sema | 7-5,3-6,7-6 |
| ITF Women Darwin | 2018/09/25 04:50 | Shilin Xu v Erika Sema | 6-2,7-6 |
| WTA Tokyo | 2018/09/15 04:35 | Erika Sema v Nao Hibino | 0-6,0-6 |
| ITF Women Tsukuba | 2018/08/24 01:00 | Kai-Lin Zhang v Erika Sema | 6-2,6-3 |
| ITF Women Tsukuba | 2018/08/23 00:30 | Kyoka Okamura v Erika Sema | 6-1,4-6,3-6 |
| ITF Women Tsukuba | 2018/08/22 00:30 | Erika Sema v Jovana Jaksic | 7-5,6-1 |
| ITF Women Guiyang | 2018/08/14 04:55 | Anastasia Gasanova v Erika Sema | 6-2,6-2 |
| ITF Women Jinan | 2018/08/08 10:45 | Erika Sema v Mai Minokoshi | 2-6,0-6 |
| ITF Women Granby | 2018/07/26 16:45 | Julia Glushko v Erika Sema | 6-4,6-3 |
| ITF Women Brisbane | 2018/10/03 02:50 | Moyuka Uchijima v Chihiro Muramatsu | 6-3,5-7,4-6 |
| ITF Women Brisbane | 2018/10/01 02:00 | Chihiro Muramatsu v Haruna Arakawa | 6-1,6-4 |
| ITF Women Brisbane | 2018/09/30 07:00 | Chihiro Muramatsu v Shelby Talcott | 6-3,6-2 |
| ITF Women Darwin | 2018/09/25 01:55 | Irina Ramialison v Chihiro Muramatsu | 6-2,6-4 |
| ITF Women Darwin | 2018/09/24 00:30 | Aiko Yoshitomi v Chihiro Muramatsu | 0-6,2-6 |
| ITF Women Darwin | 2018/09/23 03:15 | Lisa Mays v Chihiro Muramatsu | 6-1,4-6,3-6 |
| WTA Tokyo | 2018/09/16 06:50 | Eugenie Bouchard v Chihiro Muramatsu | 6-1,2-6,7-5 |
| WTA Tokyo | 2018/09/15 09:40 | Chihiro Muramatsu v Misa Eguchi | 6-2,6-0 |