The United States opened their defense of their Women's World Cup title with a 13–0 victory against Thailand, setting a new record for the largest margin of victory in the tournament's history. The majority of goals came in the second half, grouped in bunches over the span of a few minutes each. Alex Morgan scored five times, tying a tournament and team record for most goals in a single World Cup match. The U.S. team were later criticised for celebrating their goals during the match, with some media commentators and former players calling it disrespectful, but the celebrations were defended by other media commentators, the team's players and members of the opposing Thai bench.
The United States fielded a reserve squad with seven changes to the starting lineup to rest its players ahead of the final group stage match against Sweden. Carli Lloyd scored in the 11th minute from the edge of the penalty area and Julie Ertz added a second with a header on a corner kick in the 26th minute. Lloyd scored her second goal of the match in the 35th minute, heading in another corner kick, and missed a penalty kick in the 81st minute that would have given her a hat-trick. Chilean goalkeeper Christiane Endler made several major saves as her team was outshot 26–1, and was named the player of the match for her efforts.
Fair play points would have been used as tiebreakers if the overall and head-to-head records of teams were tied. These are calculated based on yellow and red cards received in all group matches as follows:
first yellow card: minus 1 point;
indirect red card (second yellow card): minus 3 points;
direct red card: minus 4 points;
yellow card and direct red card: minus 5 points;
Only one of the above deductions were applied to a player in a single match.