Talita Antunes/Larissa Franca, Brazil (1) defeated Nicole Branagh/Emily Day, United States (25) 2-0 (21-15, 21-9).
It was the first FIVB World Tour meeting between the two teams.
In Pool F, Brazil is 2-0, advancing to the knockout phase, and the United States is 1-1. Also in Pool F, Germany's Victoria Bieneck/Isabel Schneider is 1-1 and Katharina Holzer/Teresa Strauss of Austria is 0-2.
Up next for Brazil is Germany while the United States plays Austria. Both matches are Monday, 31 July.