American Jessica pegula has secured her spot in the US Open quarterfinals for the second time in 3 years following a commanding 64 6-2 win against Diana Schneider on Monday pegula's Victory came in 1 hour and 27 minutes propelling her into the last eight alongside compatriot Emma Navaro stunned reigning champion in world number three KOCO Goff on Sunday in the match Pula initially struggled to close out the first set ultimately held her composure after schneer briefly threatened 30-year-old pegula BR schnader served twice in the second set demonstrating strong performance and finishing with an ace to secure her place in the quarterfinals pula's recent form has been exceptional highlighted by her Canadian open title and a final appearance at the Cincinnati open where she only lost to World num to Arena sabalenka her run at Flushing Meadows represents her best Grand Slam performance of the Year following exits in the second rounds of the Australian Open in Wimbledon and missing the French Open due to injury after her match Kula expressed relief and excitement about her performance there's been more pressure this year because of my strong results leading up to this tournament today I felt like I played my best off the ground and I hope to continue improving in the later rounds she said pegula will aim to break her quarterfinal curse she is 0 to6 at this stage in grand slams in her next match which will be against either leuda samsonova or world number one IGA Shion karolina machova reaches US Open quarterfinals with win over Jasmine palini Czech Republic's kolina machova has continued her impressive US Open campaign advancing to the quarterfinals with a 6 to3 6 to3 victory over fifth seed Jasmine palini the match lasted just over an hour and showcased mucha's return to top form after overcoming various injuries mucha now 28 and a formidable Presence at the tournament defeating Naomi Osaka and world number 38 Anastasia Popova in earlier round palini despite a strong Grand Slam season including finals at Roland garos and Wimbledon couldn't match mucha's intensity last year much reached the US Open semi-finals and achieved a career-high ranking of number eight after battling injuries including rist surgery and issues with her back abdomen and ankles mucha made a comeback in June now unseated she's been playing some of her best tennis including using the saber technique popularized by Roger Federer muchova will face Beatrice Hadad Maya in the quarter fight Hadad Maya made history by becoming the first Brazilian woman to reach the US Open quarterfinals since Maria Bueno in 1968 following her victory over Caroline was niaki with scores of 62 36 63