Overview
- The semifinal is scheduled for Thursday, September 4, in New York, with U.S. coverage on ESPN/ESPN+/ESPN2 and broadcasts on Sky Sports (UK), TSN/RDS (Canada), and Jio Hotstar/Star Sports (India).
- Defending champion Aryna Sabalenka did not drop a set through the first four rounds and reached the last four via a quarterfinal walkover after Marketa Vondrousova withdrew injured.
- Jessica Pegula advanced with five straight‑set victories, defeating Mayar Sherif, Anna Blinkova, Victoria Azarenka, Ann Li and Barbora Krejcikova.
- The matchup reprises the 2024 final, with Sabalenka leading the head‑to‑head against Pegula 7–2.
- The other semifinal pairs No. 8 seed Amanda Anisimova with No. 23 Naomi Osaka, a four‑time major champion back in a Grand Slam semifinal.