Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF W100 Charleston | 2019/05/01 14:00 | Cepede Royg, Veronica v Osaka, Mari | 1-6,7-5,6-3 |
| ITF W100 Charleston | 2019/04/30 15:35 | Osaka, Mari v Marand, Sanaz | 7-5,6-4 |
| ITF W100 Charleston | 2019/04/29 14:00 | Osaka, Mari v Kissell, Joelle | 6-1,6-2 |
| Osprey, Fl, Singles Qualifying W-ITF-USA-14A | 2019/04/25 15:30 | Ann Li v Osaka, Mari | 6-1,6-3 |
| Osprey, Fl, Singles Qualifying W-ITF-USA-14A | 2019/04/24 19:10 | Perper, Alexandra v Osaka, Mari | 6-0,4-6,0-6 |
| ITF W25 Pelham | 2019/04/11 23:30 | Osaka, Mari v Karatantcheva, Sesil | 4-6,4-6 |
| ITF W25 Pelham | 2019/04/10 16:05 | Osaka, Mari v Kayla Day | 6-3,6-4 |
| ITF W25 Pelham | 2019/04/09 21:30 | Osaka, Mari v Panna Udvardy | 7-6,6-3 |
| ITF W25 Playford | 2019/01/01 01:40 | Elie, Jennifer v Punnin Kovapitukted | 3-6,6-4,10-8 |
| Playford, Simples W-WITF-AUS-01A | 2018/12/31 02:30 | Frahn, Madison v Punnin Kovapitukted | 1-6,4-6 |
| Hua Hin, Singles W-WITF-THA-07A | 2018/11/27 03:00 | Thamchaiwat, B. v Punnin Kovapitukted | 6-3,6-1 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/11/15 02:00 | Sawasdee, Watsachol v Punnin Kovapitukted | 6-3,7-5 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/11/14 02:00 | Kuearum, Supapitch v Punnin Kovapitukted | 4-6,6-7 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/11/13 03:40 | Jirasook, Keira v Punnin Kovapitukted | 1-6,1-6 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/09/04 02:00 | Punnin Kovapitukted v Zakarlyuk, Marianna | 6-4,3-6,1-6 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/08/16 02:00 | Xinyu Wang v Punnin Kovapitukted | 6-2,6-2 |