| Final | Team | time | | 1. Diane Dixon |  USA | 50.64s | | 2. Sandra Myers |  ESP | 50.99s | | 3. Anita Protti |  SUI | 51.41s | | 4. Aelita Yurchenko |  URS | 51.59s | | 5. Jearl Miles | USA | 52.00s | | 6. Ludmilla Dshigalova | URS | 52.19s |
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| Semi 1 | Team | time | | 1. Sandra Mayers | ESP | 52.16s | | 2. Jearl Miles | USA | 52.43s | | 3. Ludmilla Dshigalova | URS | 52.68s | | 4. Vivienne Spencer-Gardener |  JAM | 52.84s | | 5. Rosey Edeh |  CAN | 54.51s | | -. Noemi Batori |  HUN | DNF |
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| Semi 2 | Team | time | | 1. Diane Dixon | USA | 51.97s | | 2. Aelita Yurchenko | URS | 52.14s | | 3. Anita Protti | SUI | 52.18s | | 4. Kathrin Schreiter |  GER | 53.05s | | 5. Jolanda Oanta |  ROM | 53.40s | | 6. Julia Moreno | ESP | 53.51s |
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| Heat 1 | Team | time | | 1. Jearl Miles | USA | 53.88s | | 2. Kathrin Schreiter | GER | 54.00s | | 3. Anita Protti | SUI | 54.01s | | 4. Jolanda Oanta | ROM | 54.26s | | 5. Claudia Acerenza |  URU | 56.57s | | 6. Lasnet Nkouba |  CGO | 58.50s |
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| Heat 2 | Team | time | | 1. Diane Dixon | USA | 52.72s | | 2. Sandra Myers | ESP | 53.01s | | 3. Vivienne Spence-Gardner | JAM | 53.34s | | 4. Ludmilla Dshigalova | URS | 53.87s | | 5. Rosey Edeh | CAN | 54.53s |
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| Heat 3 | Team | time | | 1. Aelita Yurchenko | URS | 52.15s | | 2. Noemi Batori | HUN | 52.60s | | 3. Julia Merino | ESP | 52.68s | | 4. Norfalia Carabali |  COL | 54.78s | | 5. Nesha Bidouane |  MAR | 55.69s | | 6. Fatima Yussuf |  NGR | DQ |
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