Jessica Pegula advanced to the quarterfinals of the U.S. Open with a 6-4, 6-2 victory over Diana Shnaider, marking her seventh appearance in this stage of a Grand Slam but highlighting her struggle with a 0-6 record in previous quarterfinal matches. The No. 6 seed is on a hot streak, winning 13 of her last 14 matches on hard courts, including a consecutive title in Canada and a runner-up finish in Cincinnati. Pegula expressed increased pressure this year due to her recent successes and aims to perform well in the later rounds. Also reaching the quarterfinals is Karolina Muchova, who defeated No. 5 Jasmine Paolini, making a strong comeback after wrist surgery. Pegula is set to face either world No. 1 Iga Swiatek or Liudmila Samsonova next, as she seeks her first semifinal appearance at a Grand Slam. Notably, Pegula has previously lost to No. 1 players in three of her six quarterfinal exits.