Stadium: CAMPO 6 Round: 25
| ITF Women Mexico City | 2018/10/29 20:05 | Solymar Colling v Vivian Mayumi Toma | 6-0,6-0 |
| ITF Women Florence | 2018/10/14 17:00 | Paula Cristina Goncalves v Vivian Mayumi Toma | 6-0,6-0 |
| ITF Women Buenos Aires | 2018/09/17 16:40 | Victoria Ariadna Beccio v Vivian Mayumi Toma | 6-1,6-0 |
| ITF Women Nonthaburi | 2018/09/01 07:00 | Vivian Mayumi Toma v Min Liu | 1-6,0-6 |
| ITF Women Nonthaburi | 2018/08/25 02:00 | Natthapat Piwbangruk v Vivian Mayumi Toma | 6-3,6-1 |
| ITF Women Evansville | 2018/07/23 15:00 | Vivian Mayumi Toma v Mayuka Aikawa | 1-6,0-6 |
| ITF Women Victoria | 2018/06/18 20:00 | Vivian Mayumi Toma v Brynn Boren | 0-6,1-6 |
| ITF Women Osprey Qual | 2018/05/22 14:00 | Hailey Baptiste v Vivian Mayumi Toma | 6-0,6-0 |
| ITF Women Bogota | 2018/12/02 16:45 | Hailey Wilcox v Ana Maria Gomez | 6-1,6-2 |
| ITF Women Bogota | 2018/12/01 15:00 | Mariana V. Carrascal v Hailey Wilcox | 4-6,1-6 |
| ITF Women Mexico City | 2018/10/29 16:30 | Tricia Mar v Hailey Wilcox | 3-6,7-5,3-6 |
| ITF Women Tacarigua | 2018/05/07 14:00 | Hailey Wilcox v Catherine Leduc | 2-6,1-6 |
| ITF Women Tacarigua | 2018/05/06 14:00 | Harris Caldwell v Hailey Wilcox | 3-6,3-6 |