| Final 18:35 | Team | time | L | | 1. Ericka Belinda Chavez Quinteros | ECU | 23.71s | 4 | | 2. Vanda Gomes | BRA | 23.82s | 7 | | 3. Barbara Leoncio | BRA | 23.86s | 3 | | 4. Yenifer Padilla Gonzalez | COL | 24.11s | 5 | | 5. Maria Alejandra Idrobo Paz | COL | 24.20s | 6 | | 6. Florencia Lamboglia | ARG | 25.05s | 1 | | 7. Leslie Fernanda Arnez Rivero | BOL | 25.09s | 8 | | 8. Isidora Jimenez | CHI | 25.24s | 2 |
|
|
| Heat 1 10:30 | Team | time | L | | 1. Barbara Leoncio | BRA | 24.04s | 2 | | 2. Maria Alejandra Idrobo Paz | COL | 24.12s | 5 | | 3. Leslie Fernanda Arnez Rivero | BOL | 24.95s | 6 | | 4. Paola Mautino Ruiz | PER | 25.65s | 3 | | 5. Marysabel Romero Lea Plaza | BOL | 25.81s | 4 |
|
| Heat 2 10:40 | Team | time | L | | 1. Ericka Belinda Chavez Quinteros | ECU | 23.67s | 6 | | 2. Yenifer Padilla Gonzalez | COL | 23.81s | 2 | | 3. Vanda Gomes | BRA | 23.86s | 5 | | 4. Florencia Lamboglia | ARG | 24.71s | 3 | | 5. Isidora Jimenez | CHI | 25.13s | 4 |
|
|