Overview
- Madison Keys withdrew with a viral illness before her final round-robin match, prompting second alternate Ekaterina Alexandrova to debut after first alternate Mirra Andreeva did not sign in due to fitness and doubles commitments.
- Elena Rybakina defeated Alexandrova 6-4, 6-4 in Riyadh to complete a 3-0 group stage and advance as Serena Williams Group winner.
- Amanda Anisimova beat Iga Świątek in their winner-takes-all matchup to claim the group’s runner-up spot and a place in the semifinals.
- Tournament rules on alternates shaped Wednesday’s lineup, with per-match ranking points and prize money giving the replacement match competitive significance despite Keys’ elimination.
- The Steffi Graf Group remains open, with qualification scenarios indicating Sabalenka advances with a Pegula win, while various two- and three-set combinations could send Gauff through depending on margins and percentage of games won.