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.

Sara Errani and Andrea Vavassori defended their U.S. Open mixed doubles title Wednesday night, keeping a traditional team on top of a revamped event filled with singles stars. The Italians beat No.

Sara Errani and Andrea Vavassori triumphed at the 2025 US Open Mixed Doubles Championship, defeating third seeds Iga Swiatek and Casper Ruud with a score of 6-3, 5-7, 10-6.