Aryna Sabalenka defeated Jessica Pegula 4–6, 6–3, 6–4 in the semi-final of the US Open on hard court on 4 September 2025. After dropping the opening set, Sabalenka regrouped to claim the next two frames and advance to the final. The result extends Sabalenka's campaign at Flushing Meadows, where she will face the winner of the other semi-final.