Stadium: Quadra Central Round: 26 Ground: Clay
| ITF W15 Curitiba | 2021/12/01 13:00 | Emily M D S Chang v Sofia Da Cruz Mendonca | 4-6,6-3,6-2 |
| ITF W15 Curitiba | 2021/11/30 12:55 | Maria L C Bloot v Emily M D S Chang | 7-5,4-6,7-10 |
| ITF W15 Curitiba | 2021/11/29 13:30 | Luciana Braga v Emily M D S Chang | 4-6,3-6 |
| ITF W15 Curitiba | 2021/11/30 18:25 | Helena Bueno v Thaisa Grana Pedretti | 0-6,1-6 |
| ITF W60 Brasilia | 2021/11/24 15:25 | Thaisa Grana Pedretti v Xiaodi You | 5-7,1-6 |
| ITF W60 Brasilia | 2021/11/22 16:30 | Thaisa Grana Pedretti v Julia Klimovicz | 6-2,6-2 |
| ITF W25 Aparecida De Goiania | 2021/11/11 12:00 | Thaisa Grana Pedretti v Ana Sofia Sanchez | 5-7,6-7 |
| ITF W25 Aparecida De Goiania | 2021/11/09 11:00 | Thaisa Grana Pedretti v Olivia Carneiro | 6-1,6-2 |
| ITF W25 Rio do Sul | 2021/10/21 13:50 | Thaisa Grana Pedretti v Laura Pigossi | 2-6,6-2,1-6 |
| ITF W25 Rio do Sul | 2021/10/20 13:20 | Juliana Munhoz v Thaisa Grana Pedretti | 4-6,3-6 |
| ITF W25 Lima | 2021/10/12 18:10 | Ziva Falkner v Thaisa Grana Pedretti | 6-3,5-7,6-2 |