Stadium: Centre Court Round: 45 Ground: Hardcourt outdoor
| WTA Auckland | 2018/12/28 22:20 | Laura Siegemund v Sabrina Santamaria | 6-3,6-4 |
| WTA Tianjin | 2018/10/06 03:00 | Misaki Doi v Sabrina Santamaria | 7-6,6-4 |
| WTA Quebec City | 2018/09/08 22:50 | Kayla Day v Sabrina Santamaria | 6-7,6-4,6-3 |
| ITF Women Berkeley Qual | 2018/07/17 19:00 | Sabrina Santamaria v Lorraine M. Guillermo | 6-2,1-6,6-7 |
| ITF Women Berkeley Qual | 2018/07/16 20:50 | Sabrina Santamaria v Sabastiani Leon | 6-1,6-1 |
| ITF Women Berkeley Qual | 2018/07/15 23:05 | Sabrina Santamaria v Makenna Thiel | 6-3,6-2 |
| ITF Women Wiesbaden | 2018/04/24 12:45 | Dalma Galfi v Sabrina Santamaria | 6-4,6-2 |
| WTA Bogota Qual | 2018/04/07 16:50 | Lizette Cabrera v Sabrina Santamaria | 6-0,6-4 |
| ITF W25 Playford | 2019/01/03 00:50 | Chloe Paquet v Isabelle Wallace | 4-6,6-4,6-3 |
| ITF W25 Playford | 2019/01/01 05:25 | Isabelle Wallace v Jasmine Paolini | 6-4,7-6 |
| Australian Open Women WC | 2018/12/10 23:00 | Isabelle Wallace v Astra Sharma | 6-3,1-6,4-6 |
| ITF Women Canberra | 2018/11/03 03:45 | Zoe Hives v Isabelle Wallace | 4-6,6-3,6-4 |
| ITF Women Canberra | 2018/11/02 02:00 | Kaylah McPhee v Isabelle Wallace | 6-7,6-4,0-6 |
| ITF Women Canberra | 2018/11/01 02:10 | Isabelle Wallace v Lizette Cabrera | 6-1,4-6,6-2 |
| ITF Women Canberra | 2018/10/31 03:40 | Isabelle Wallace v Junri Namigata | 7-5,6-3 |
| ITF Women Bendigo | 2018/10/24 23:00 | Isabelle Wallace v Olivia Rogowska | 2-6,3-6 |