The second semifinal between defending champions Sara Errani/Andrea Vavassori and the all-American, last-minute alternate pairing of Danielle Collins/Christian Harrison is underway, as they bid to join Świątek/Ruud in the mixed doubles finale.

Poland's Iga Swiatek and Norway's Casper Ruud, two points away from a defeat, rallied to win the final six points and beat the United States' Jessica Pegula and Great Britain's Jack Draper 3-5, 5-3, 10-8 in the U.