| Final 20:00 | Team | time | L | | 1. Robyn Ann Johnson | USA | 2:17.5 | | 2. Terri Lee-Stickles | USA | 2:18.4 | | 3. Lynne Pomfret | CAN | 2:28.4 | | 4. Vera Maria Formiga | BRA | 2:30.5 | | 5. Maria Louisa Sousa | MEX | 2:32.4 | | 6. Ann Lalland | PUR | 2:33.4 |
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| Heat 1 | Team | time | L | | -. Robyn Ann Johnson | USA | | 5 | | -. Lynne Pomfret | CAN | | 6 | | -. Ann Lalland | PUR | | 4 | | -. Maria Cerelo | BRA | | 2 | | -. Lilian Hasembein | ARG | | 3 | | -. Patricia Gonzalez | PER | | 7 |
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| Heat 2 | Team | time | L | . | | -. Terri Lee-Stickles | USA | | 5 | | -. Vera Maria Formiga | BRA | | 4 | | -. Maria Louisa Sousa | MEX | | 8 | | -. Madeleine Sevigny | CAN | | 6 | | -. Ameli Canosa | PER | | 2 | | -. Fany Vallaza Robles | ECU | | 3 | | -. Angela Marchetti | ARG | | 7 | | -. Vivan Carrion | PUER | | 9 |
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