Stadium: Court 6 Round: 25 Ground: Hardcourt outdoor
| WTA Hiroshima | 2018/09/08 02:00 | Risa Ozaki v Chihiro Muramatsu | 4-6,6-3,3-6 |
| WTA Osaka | 2019/09/14 06:15 | Risa Ozaki v Xinyun Han | 2-6,3-6 |
| WTA Hiroshima | 2019/09/10 05:40 | Su-Wei Hsieh v Risa Ozaki | 6-1,3-6,6-3 |
| ITF W60 Jinan | 2019/08/28 06:45 | Risa Ozaki v Kaylah McPhee | 6-4,1-6,5-7 |
| ITF W25 Tsukuba | 2019/08/21 04:15 | Carol Zhao v Risa Ozaki | 6-2,6-3 |
| ITF W25 Gatineau | 2019/07/16 14:25 | Carol Zhao v Risa Ozaki | 6-3,1-6,6-2 |
| ITF W60 Honolulu | 2019/07/12 00:10 | Risa Ozaki v Kayla Day | 5-7,3-6 |
| ITF W60 Honolulu | 2019/07/10 20:00 | Risa Ozaki v Kelly Chen | 7-5,6-4 |
| ITF W25 Jakarta | 2019/06/23 03:00 | Risa Ozaki v Arianne Hartono | 6-4,6-1 |
| WTA Hiroshima | 2019/09/08 03:35 | Patricia Maria Tig v Chihiro Muramatsu | 3-6,7-5,6-3 |
| ITF W60 Changsha | 2019/09/04 02:00 | Xinyu Gao v Chihiro Muramatsu | 6-2,6-3 |
| ITF W60 Jinan | 2019/08/31 02:00 | Kaylah McPhee v Chihiro Muramatsu | 7-6,3-6,6-1 |
| ITF W60 Jinan | 2019/08/30 02:00 | Chihiro Muramatsu v Aldila Sutjiadi | 6-4,6-2 |
| ITF W60 Jinan | 2019/08/29 04:35 | Meiling Wang v Chihiro Muramatsu | 2-6,1-6 |
| ITF W60 Jinan | 2019/08/28 03:35 | Lou Brouleau v Chihiro Muramatsu | 3-6,2-6 |
| ITF W25 Guiyang | 2019/08/21 02:00 | Chihiro Muramatsu v Amy Zhu | 2-6,6-2,5-7 |
| ITF W25 Huangshan | 2019/08/16 03:00 | Chihiro Muramatsu v Fangzhou Liu | 2-6,6-7 |