Estádio: Court 5 Round: 45 Ground: Clay
| ITF - W25 Olímpia | 2020/03/08 13:00 | Vivian Mayumi Toma v Paola Ueno Dalmonico | 3-6,3-6 |
| ITF - W15 Cancún | 2019/11/19 15:45 | Vivian Mayumi Toma v Kelly Williford | 1-6,1-6 |
| ITF - W15 Cancún | 2019/11/17 15:00 | Vivian Mayumi Toma v Emma Van Poppel | 2-6,2-6 |
| ITF - W15 Guatemala | 2019/11/05 15:55 | Vivian Mayumi Toma v Caroline Romeo | 0-6,0-6 |
| ITF - W15 Pretória | 2019/09/29 07:00 | Vivian Mayumi Toma v Cayline Le Grange | 1-6,1-6 |
| ITF - W15 Joanesburgo | 2019/09/22 09:10 | Dasha Borodatova v Vivian Mayumi Toma | 6-7,6-3,10-3 |
| ITF - W15 Lambaré | 2019/08/21 21:40 | Reza Timmerman v Vivian Mayumi Toma | 6-2,6-0 |
| ITF - W15 Santa Cruz | 2019/08/07 21:10 | Vivian Mayumi Toma v Julia Riera | 1-6,4-6 |