Overview
- Osaka defeated Karolína Muchová 6-4, 7-6 (7-3) to book a semifinal berth at Flushing Meadows.
- The 23rd seed is back in a Grand Slam last four for the first time since winning the 2021 Australian Open after pausing her career in 2023 for maternity leave.
- Muchová took a medical timeout and returned with her left thigh heavily strapped before pushing the second set to a tiebreak.
- Amanda Anisimova beat second seed Iga Świątek 6-4, 6-3 to reach the semifinals and complete a notable turnaround from her lopsided Wimbledon final loss to the Pole two months ago.
- Osaka, a two-time US Open champion, will face Anisimova after a run that included eliminating third seed Coco Gauff in the last 16.