Iga Świątek defeated Jule Niemeier 2–6, 6–4, 6–0 in the fourth round of the US Open on hard court, confirming her status as the heavy pre-match favourite at odds of 1.17. After dropping the opening set to the German qualifier, Świątek seized control in the second, breaking serve decisively before dominating the third with a bagel to secure passage to the quarter-finals. The result underscored Świątek's resilience on the hard court, a surface where she had demonstrated improvement throughout the summer. The emphatic final-set performance suggested momentum building as she advanced deeper into the tournament.