| Final | Team | time | L | Rk. | | 1. Fabiola Molina | BRA | 28.50s | 4 | 1. | | 2. Jeserik Andreina Pinto | VEN | 29.26s | 3 | 3. | | 3. Carolina Colorado Henao | COL | 29.75s | 5 | 2. | | 4. Isabella Arcila Hurtado | COL | 30.10s | 6 | 4. | | 5. Cecilia Bertoncello | ARG | 30.16s | 2 | 5. | | 6. Fernanda Alvarenga | BRA | 30.53s | 1 | 7. | | 7. Florencia Perotti | ARG | 30.80s | 8 | 8. | | 8. Diana An Yu Chang Ibarra | ECU | 31.08s | 7 | 6. |
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| Heat 1 | Team | time | L | Rk. | | 1. Carolina Colorado Henao | COL | 29.48s | 4 | 2. | | 2. Florencia Perotti | ARG | 31.01s | 5 | 8. | | 3. Elimar Barrios | VEN | 31.13s | 3 | 9. | | 4. Chinyere Pigot | SUR | 32.08s | 2 | 12. | | 5. Maria Laura Mongelos Britez | PAR | 32.27s | 6 | 13. | | 6. Mariana Carbo Vaca Diez Zavalla | BOL | 35.06s | 7 | 18. |
| Heat 2 | Team | time | L | Rk. | | 1. Jeserik Andreina Pinto | VEN | 29.63s | 5 | 3. | | 2. Isabella Arcila Hurtado | COL | 29.94s | 3 | 4. | | 3. Fernanda Alvarenga | BRA | 30.70s | 4 | 7. | | 4. Massie Milagros Carrillo Yong | PER | 31.41s | 6 | 11. | | 5. Carolina Alejandra Aguilar Muro | PER | 32.40s | 2 | 14. | | 6. Chandel Domaso | SUR | 32.74s | 7 | 15. |
| Heat 3 | Team | time | L | Rk. | | 1. Fabiola Molina | BRA | 28.69s | 4 | 1. | | 2. Cecilia Bertoncello | ARG | 30.42s | 5 | 5. | | 3. Diana An Yu Chang Ibarra | ECU | 30.47s | 3 | 6. | | 4. Maria Virginia Franco Baez | PAR | 31.34s | 6 | 10. | | 5. Carolina Trewhela Pfeifer | CHI | 33.35s | 2 | 16. | | 6. Karen Milenka Torrez Guzman | BOL | 33.68s | 7 | 17. |
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