Stadium: Quadra Central Round: 26 Ground: Clay
| ITF W15 Curitiba | 2021/12/01 16:00 | Julia R D M Moraes v Isabela M Romanichen | 1-6,6-4,5-7 |
| ITF W15 Curitiba | 2021/11/30 18:20 | Isabelle Turra Karam v Isabela M Romanichen | 3-6,2-6 |
| ITF W15 Curitiba | 2021/11/29 18:40 | Isabela M Romanichen v Suzana Faucz | 6-1,6-2 |
| ITF W15 Curitiba | 2021/12/01 17:20 | Emily Welker v Eduarda Piai | 6-4,6-3 |
| ITF W60 Brasilia | 2021/11/23 15:45 | Martina Capurro Taborda v Emily Welker | 3-6,6-3,6-3 |
| ITF W60 Brasilia | 2021/11/22 13:20 | Noelia Zeballos v Emily Welker | 7-5,6-7,8-10 |
| ITF W60 Brasilia | 2021/11/21 16:00 | Elsa Wan v Emily Welker | 1-6,1-6 |
| ITF W15 Cundinamarca | 2021/11/19 14:30 | Emily Welker v Maria F Herazo Gonzalez | 0-6,6-7 |
| ITF W15 Cundinamarca | 2021/11/18 15:45 | Emily Welker v Mariana J Bustillo | 6-0,6-1 |
| ITF W15 Cundinamarca | 2021/11/17 14:30 | Jessica Plazas v Emily Welker | 3-6,5-7 |
| ITF W25 Aparecida De Goiania | 2021/11/10 12:00 | Carol Zhao v Emily Welker | 2-6,6-2,6-4 |