Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF W100 Charleston | 2019/05/01 14:00 | Veronica Cepede Royg v Mari Osaka | 1-6,7-5,6-3 |
| ITF W100 Charleston | 2019/04/30 15:35 | Mari Osaka v Sanaz Marand | 7-5,6-4 |
| ITF W100 Charleston | 2019/04/29 14:00 | Mari Osaka v Joelle Kissell | 6-1,6-2 |
| ITF W25 Osprey | 2019/04/25 15:30 | Ann Li v Mari Osaka | 6-1,6-3 |
| ITF W25 Osprey | 2019/04/24 19:10 | Alexandra Perper v Mari Osaka | 6-0,4-6,0-6 |
| ITF W25 Pelham | 2019/04/11 23:30 | Mari Osaka v Sesil Karatantcheva | 4-6,4-6 |
| ITF W25 Pelham | 2019/04/10 16:05 | Mari Osaka v Kayla Day | 6-3,6-4 |
| ITF W25 Pelham | 2019/04/09 21:30 | Mari Osaka v Panna Udvardy | 7-6,6-3 |
| ITF W25 Playford | 2019/01/01 01:40 | Jennifer Elie v Punnin Kovapitukted | 3-6,6-4,10-8 |
| ITF Women Playford | 2018/12/31 02:30 | Madison Frahn v Punnin Kovapitukted | 1-6,4-6 |
| ITF Women Hua Hin | 2018/11/27 03:00 | Bunyawi Thamchaiwat v Punnin Kovapitukted | 6-3,6-1 |
| ITF Women Nonthaburi | 2018/11/15 02:00 | Watsachol Sawasdee v Punnin Kovapitukted | 6-3,7-5 |
| ITF Women Nonthaburi | 2018/11/14 02:00 | Supapitch Kuearum v Punnin Kovapitukted | 4-6,6-7 |
| ITF Women Nonthaburi | 2018/11/13 03:40 | Keira Jirasook v Punnin Kovapitukted | 1-6,1-6 |
| ITF Women Nonthaburi | 2018/09/04 02:00 | Punnin Kovapitukted v Marianna Zakarlyuk | 6-4,3-6,1-6 |
| ITF Women Nonthaburi | 2018/08/16 02:00 | Xinyu Wang v Punnin Kovapitukted | 6-2,6-2 |