Marta Kostyuk defeated Diane Parry 3–6, 6–4, 6–2 at the US Open second round on hard court, confirming her status as the heavy pre-match favourite at odds of 1.29 to Parry's 4.04. Kostyuk's recovery from a first-set deficit proved decisive; after dropping the opening set, she regained control to dominate the final two frames and advance comfortably. The Ukrainian's ability to adjust tactically and maintain consistency under pressure demonstrated the quality expected of the seeded player. Parry's first-set success offered brief resistance but proved insufficient against an opponent who found her rhythm in the latter stages. Kostyuk's progression to the third round underlines her continued form at the majors.