What happened: The No. 4 seed defeated No. 14 Iva Jovic 6-1, 6-4 in the fourth round. The victory extended her winning streak, which began in Cincinnati, to 10 matches.
Why it matters: At 22, Gauff is the youngest American woman to make three Major quarterfinals in one year since Serena Williams in 2003. She is chasing her second US Open title after winning in 2023.
By the numbers: Gauff owns a 5-0 career record against her next opponent, Mirra Andreeva.
What to watch: Gauff meets the No. 5 seed for a place in the semifinals.