| Final Wind 0.0m/s | Team | time | L | | | 1. Delloreen Ennis-London | JAM | 12.65s | 3 | GR | | 2. Perdita Felicien | CAN | 12.65s | 4 | | | 3. Angela Whyte | CAN | 12.72s | 5 | | | 4. Vonette Dixon | JAM | 12.86s | 2 | | | 5. Anay Tejeda | CUB | 12.95s | 6 | | | 6. Jenny Adams | USA | 13.15s | 7 | | | 7. Nadine Faustin-Parker | HAI | 13.26s | 8 | | | 8. Yvette Lewis | USA | 13.69s | 1 | |
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| World Record: | | Yordanka Donkova (BUL) 12.21s | | Stara Zagora (BUL) 20.08.1988 | | Panamerican Record: |
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| Heats - First 2 and Best 2 progress. |
| Heat 1 | Team | time | L | | 4. Delloreen Ennis-London | JAM | 12.81s | | | 6. Jenny Adams | USA | 13.15s | | | 9. Yenima Arencibia | CUB | 13.32s | | | 11.Briggite Merlano | COL | 13.35s | | | 13.Soledad Donzino | ARG | 13.76s | | | 15.Janielle Brathwaite | BAR | 14.26s | |
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| Heat 2 | Team | time | L | | 1. Angela Whyte | CAN | 12.68s | | | 5. Vonette Dixon | JAM | 12.86s | | | 7. Nadine Faustin-Parker | HAI | 13.24s | SB | | 14.Jeimmy Bernardez | HON | 14.05s | | | 16.Leniece Lewis | BVI | 15.10s | | | -. Gilvaneide Parrela | BRA | DNS | |
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| Heat 3 | Team | time | L | | 2. Perdita Felicien | CAN | 12.69s | SB | | 3. Anay Tejeda | CUB | 12.80s | | | 8. Yvette Lewis | USA | 13.25s | | | 10.Tivanna Thompson | BAH | 13.33s | | | 12.Fabiana Moraes | BRA | 13.75s | |
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