Stadium: Court 6 Round: 54 Ground: Clay
| ITF W25 Aparecida De Goiania | 2021/11/10 12:00 | Vivian Mayumi Toma v Helena Bueno | 3-6,0-6 |
| ITF W25 Aparecida De Goiania | 2021/11/08 13:00 | Vivian Mayumi Toma v Beatriz Verdial | 0-6,1-6 |
| ITF W25 Rio do Sul | 2021/10/19 12:00 | Sofia Da Cruz Mendonca v Vivian Mayumi Toma | 6-0,6-0 |
| ITF W25 Rio do Sul | 2021/10/18 16:00 | Vivian Mayumi Toma v Mariana Gomes Sorrilha | 2-6,6-4,10-7 |
| ITF W15 Piracicaba | 2021/10/12 13:30 | Ferreira, Nicolly v Vivian Mayumi Toma | 6-0,6-2 |
| ITF W25 Medellin | 2021/09/12 19:00 | Laura D A Patino v Vivian Mayumi Toma | 6-1,6-2 |
| ITF W15 Ibague | 2021/09/08 16:00 | Thaisa Grana Pedretti v Vivian Mayumi Toma | 6-0,6-1 |
| ITF W15 Ibague | 2021/09/06 19:30 | Susana Marino Hidalgo v Vivian Mayumi Toma | 6-2,5-7,8-10 |
| ITF W25 Aparecida De Goiania | 2021/11/11 12:00 | Miriana Tona v Victoria Jimenez Kasintseva | 0-6,3-6 |
| ITF W25 Aparecida De Goiania | 2021/11/09 13:55 | Isabella Daher Vaz Castro v Miriana Tona | 0-6,1-6 |
| ITF W25 Aparecida De Goiania | 2021/11/08 12:00 | Miriana Tona v Bloot, Maria Luisa Cusma | 6-1,6-0 |
| ITF W25 Guayaquil | 2021/10/27 19:45 | Jana Kolodynska v Miriana Tona | 7-5,4-6,6-3 |
| ITF W25 Guayaquil | 2021/10/25 17:10 | Fernanda Astete v Miriana Tona | 6-4,1-6,10-12 |
| ITF W25 Rio do Sul | 2021/10/20 12:00 | Gerlach, Katharina v Miriana Tona | 6-4,6-1 |
| ITF W15 Piracicaba | 2021/10/17 13:30 | Luisa Meyer Auf Der Heide v Miriana Tona | 1-6,2-6 |
| ITF W15 Piracicaba | 2021/10/16 16:45 | Sabastiani Leon v Miriana Tona | 1-6,2-6 |