Stadium: South Center Court Round: 26
| ITF Women Stockton | 2018/10/03 20:55 | Osaka, Mari v Sanchez, Maria | 6-1,6-3 |
| WTA Tokyo | 2018/09/15 01:00 | Osaka, Mari v Lottner, Antonia | 3-6,6-4,3-6 |
| ITF Women Montreux | 2018/09/07 13:00 | Zimmermann, Kimberley v Osaka, Mari | 7-5,6-4 |
| ITF Women Montreux | 2018/09/06 08:00 | Osaka, Mari v Martina Trevisan | 6-3,6-2 |
| ITF Women Montreux | 2018/09/04 09:30 | Osaka, Mari v Kilnarova, Monika | 6-2,6-1 |
| ITF Women Budapest | 2018/08/25 12:40 | Osaka, Mari v Marfutina, Maria | 1-6,2-6 |
| ITF Women Braunschweig | 2018/08/22 09:00 | Zarycka, Anastatsia v Osaka, Mari | 6-4,7-5 |
| ITF Women Porto | 2018/07/24 09:30 | Sabino, Lisa v Osaka, Mari | 6-2,6-1 |
| ITF Women Stockton | 2018/10/02 23:00 | Robin Anderson v Ahn, Kristie | 6-1,4-6,7-6 |
| Templeton, Singles W-WITF-USA-32A | 2018/09/26 17:00 | Karatantcheva, Sesil v Robin Anderson | 6-2,6-3 |
| Templeton, Singles W-WITF-USA-32A | 2018/09/25 17:00 | Robin Anderson v Chang, Kai-Chen | 3-6,6-3,7-5 |
| Templeton, Singles W-WITF-USA-32A | 2018/09/24 20:00 | Robin Anderson v Douglas, Ellie | 7-5,6-2 |
| Templeton, Singles W-WITF-USA-32A | 2018/09/24 00:05 | Robin Anderson v Closs, Mary | 6-2,6-2 |
| ITF Women Lubbock | 2018/09/22 18:00 | Rebecca Marino v Robin Anderson | 6-4,6-1 |
| ITF Women Lubbock | 2018/09/21 20:50 | Emina Bektas v Robin Anderson | 7-6,6-7,4-6 |
| ITF Women Lubbock | 2018/09/20 18:40 | Turati, Bianca v Robin Anderson | 3-6,1-6 |