The world champions topped fellow Brazilians Ágatha Bednarczuk and Rebecca Cavalcanti 2-0 (21-13, 21-13) and USA’s Terese Cannon/Sara Sponcil also in two sets (21-12, 24-22). The Americans, who started the tournament in the qualifier, were equally dominant, sweeping both their compatriots (21-16, 21-14) and the South Americans (23-21, 21-17).
Pool B has only one team undefeated and guaranteed in the elimination rounds – Australians Olympic medallists Taliqua Clancy and Mariafe Artacho, who defeated Switzerland’s Joana Mäder/Anouk Vergé-Dépré 2-1 (21-15, 19-21, 15-9) and Canada’s Melissa Humana-Paredes/Brandie Wilkerson also in three sets (21-16, 17-21, 15-13).