Stadium: Court 3 Round: 26 Ground: Hardcourt outdoor
| ITF W25 Corroios-Seixal | 2019/07/03 16:55 | Mari Osaka v Laura Schaeder | 6-0,6-4 |
| ITF W25 Madrid | 2019/06/22 09:00 | Mari Osaka v Eva Guerrero Alvarez | 6-3,5-7,4-6 |
| ITF W25 Madrid | 2019/06/21 08:30 | Ana Sofia Sanchez v Mari Osaka | 6-7,3-6 |
| ITF W25 Madrid | 2019/06/20 11:15 | Julia Payola v Mari Osaka | 2-6,1-6 |
| ITF W25 Madrid | 2019/06/19 07:30 | Polina Monova v Mari Osaka | 6-4,3-6,5-7 |
| ITF W25 Daegu | 2019/06/08 04:45 | Na-Lae Han v Mari Osaka | 6-4,6-4 |
| ITF W25 Daegu | 2019/06/08 01:00 | Dabin Kim v Mari Osaka | 4-6,1-6 |
| ITF W25 Daegu | 2019/06/06 03:30 | Eunhye Lee v Mari Osaka | 3-6,3-6 |
| ITF W25 Corroios-Seixal | 2019/07/03 16:00 | Paige Mary Hourigan v Tess Sugnaux | 6-3,6-3 |
| 2019 Fed Cup | 2019/06/21 03:00 | Eudice Chong v Paige Mary Hourigan | 4-6,6-4,6-1 |
| 2019 Fed Cup | 2019/06/20 03:50 | Paige Mary Hourigan v Sarah Ibrahim Khan | 6-0,6-0 |
| Billie Jean King Cup | 2019/06/19 02:55 | Paige Mary Hourigan v Eshita Afrose | 6-0,6-0 |
| ITF W25 Hong Kong | 2019/06/01 02:00 | Jovana Jaksic v Paige Mary Hourigan | 6-2,4-6,11-9 |
| ITF W25 Hong Kong | 2019/05/31 08:00 | Paige Mary Hourigan v Chihiro Muramatsu | 4-6,6-2,10-7 |
| ITF W25 Hong Kong | 2019/05/30 03:25 | Eudice Chong v Paige Mary Hourigan | 6-3,5-7,5-7 |
| ITF W25 Singapore | 2019/05/25 03:00 | Aldila Sutjiadi v Paige Mary Hourigan | 6-1,6-0 |