| Brazil, Colombia and Argentina qualified to Pan-American Games America Women PG 1991. | | Colombia withdrew and Ecuador did not want to replaced it. |
| Finals | | Game | date | time | team 1 | score | team 2 | HT | | Final | 01.06 | 22:00 | Brazil | 94-62 | Colombia | ---17 | | 3-4 | 01.06 | 20:00 | Argentina | 113-58 | Ecuador | | | 1/2 | 31.05 | 20:00 | Brazil | 102-42 | Ecuador | | | 1/2 | 31.05 | 22:00 | Colombia | 86-82 | Argentina | |
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| Final ranking | w | l | pf | pa | | 1. Brazil | 6 | 0 | 596: | 314 | | 2. Colombia | 3 | 3 | 447: | 455 | | 3. Argentina | 4 | 2 | 513: | 444 | | 4. Ecuador | 1 | 5 | 355: | 578 | | 5. Venezuela | 0 | 4 | 265: | 385 |
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| Group Round. First 4 to Semi-finals. |
| Round Robin | w | l | pf | pa | | 1. Brazil | 4 | 0 | 400: | 210 | | 2. Argentina | 3 | 1 | 319: | 299 | | 3. Colombia | 2 | 2 | 298: | 280 | | 4. Ecuador | 1 | 3 | 255: | 363 | | 5. Venezuela | 0 | 4 | 265: | 385 |
| Team | Braz | Arge | Colo | Ecua | Vene | | Brazil | ----- | 96:66 | 87:48 | 113:40 | 104:56 | | Argentina | | ----- | 73:57 | 84:65 | 96:81 | | Colombia | | | ----- | 94:64 | 99:56 | | Ecuador | | | | ----- | 86:72 | | Venezuela | | | | | ----- |
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| date | time | team 1 | score | team 2 | HT | | 25.05 | 18:00 | Brazil | 104-56 | Venezuela | 61-29 | | 25.05 | 20:00 | Colombia | 94-64 | Ecuador | 49-31 | | 26.05 | 19:00 | Brazil | 113-40 | Ecuador | | | 26.05 | 21:00 | Argentina | 73-57 | Colombia | 38-32 | | 27.05 | 19:00 | Argentina | 84-65 | Ecuador | 50-33 | | 27.05 | 21:00 | Colombia | 99-56 | Venezuela | 55-22 | | 28.05 | 19:00 | Ecuador | 86-72 | Venezuela | 36-36 | | 28.05 | 21:00 | Brazil | 96-66 | Argentina | 51-33 | | 29.05 | 19:00 | Argentina | 96-81 | Venezuela | | | 29.05 | 21:00 | Brazil | 87-48 | Colombia | |
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