Jessica Pegula defeated world number one Iga Swiatek 6-2, 6-4 in the US Open quarterfinals, marking Pegula's first semifinals appearance at a Grand Slam after previously losing in six quarterfinals. Pegula praised her performance, stating she played 'really good tennis' and capitalized on Swiatek's uncharacteristic 29 unforced errors. With this win, Pegula becomes the fourth American in the semifinals, where she will face Czech player Karolina Muchova. Meanwhile, Jack Draper advanced to the men's semifinals, becoming the first British man to do so since Andy Murray, defeating Alex de Minaur 6-3, 7-5, 6-2. Pegula's victory signifies a shake-up in the tournament as only Aryna Sabalenka remains among the top three women seeds. Both Pegula and Draper expressed excitement about their accomplishments and the support from the crowd during their matches.