The Americans' 2-1 victory over France set a record for the most-watched Women's World Cup quarterfinal match on U.S. English-language television.
Fox drew 6.12 million viewers for Friday's match, and peaked at 8.24 million. The game was the most-watched English-language soccer telecast in the country since last year's men's World Cup final.
In addition, the match averaged 211,000 viewers online, making it the most-streamed Women's World Cup game ever.
The U.S. 2015 quarterfinal win over Chile -- which aired in prime time -- averaged 5.74 million.
The Americans will face England in the semifinals Tuesday.