It's Day 4 of the U.S. Open tennis tournament in Flushing Meadows, New York and continuation of second round action in men's and women's singles included some big upsets.
Carlos Alcaraz's 15-match Grand Slam unbeaten run has ended at the U.S. Open with a 6-1, 7-5, 6-4 loss to Botic van de Zandschulp in the second round. Alcaraz's exit in New York on Thursday night comes after he won the French Open in June and Wimbledon in July. The 21-year-old from Spain won the U.S. Open in 2022 and was 16-2 at the hard-court tournament in his career. This was his earliest loss at any major tournament since bowing out in the second round at Wimbledon in 2021 as a teenager.
Iga Swiatek and Jannik Sinner have flashed their No. 1 form with powerful performances that moved them into the third round of the U.S. Open. Swiatek raced by Japanese qualifier Ena Shibahara 6-0, 6-1, finishing off the match in 65 minutes. It took the 2022 U.S. Open champion longer than that to play the second set of her first-round match, when she needed a tiebreaker that she eventually closed out in 72 minutes. Sinner downed Alex Michelsen 6-4, 6-0, 6-2 in 1 hour, 39 minutes.
Karolina Muchova has eliminated two-time U.S. Open champion Naomi Osaka 6-3, 7-6 (5) in the second round at Flushing Meadows. Osaka was a point from pushing the contest to a third set while serving for the second at 5-4 on Thursday night in Arthur Ashe Stadium. But Osaka missed forehand after forehand until she ceded that game and chucked her racket. Muchova then pulled out the victory in the ensuing tiebreaker. Muchova was the runner-up at the 2023 French Open and made it to the semifinals at the U.S. Open last year before losing to champion Coco Gauff.
Click here for the complete Day 4 schedule of play.
Here's a look at who else advanced today. (For Day 3 results click here.)
Day 4 men's singles, second round results
Matteo Arnaldi (30), Italy, def. Roman Safiullin, Russia, 6-2, 6-4, 6-4.
Tomas Machac, Czechia, def. Sebastian Korda (16), United States, 6-4, 6-2, 6-4.
Jordan Thompson, Australia, def. Hubert Hurkacz (7), Poland, 7-6 (2), 6-1, 7-5.
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Jannik Sinner (1), Italy, def. Alex Michelsen, United States, 6-4, 6-0, 6-2.
Christopher O'Connell, Australia, def. Mattia Bellucci, Italy, 6-3, 6-4, 3-6, 6-3.
Nuno Borges, Portugal, def. Thanasi Kokkinakis, Australia, 6-4, 7-5, 7-5.
Jack Draper (25), Britain, def. Facundo Diaz Acosta, Argentina, 6-4, 6-2, 6-2.
Alex de Minaur (10), Australia, def. Otto Virtanen, Finland, 7-5, 6-1, 7-6 (3).
Flavio Cobolli (31), Italy, def. Zizou Bergs, Belgium, 4-6, 6-3, 7-5, 6-3.
David Goffin, Belgium, def. Adrian Mannarino, France, 6-7 (8), 6-3, 6-2, 7-6 (1).
Tommy Paul (14), United States, def. Max Purcell, Australia, 7-5, 6-0, 1-0, ret.
Gabriel Diallo, Canada, def. Arthur Fils (24), France, 7-5, 6-7 (3), 6-4, 6-4.
Daniel Evans, Britain, def. Mariano Navone, Argentina, 6-4, 6-3, 6-3.
Jakub Mensik, Czechia, def. Tristan Schoolkate, Australia, 6-7 (4), 2-6, 6-2, 7-6 (5), 7-6 (3).
Daniil Medvedev (5), Russia, def. Fabian Marozsan, Hungary, 6-3, 6-2, 7-6 (5).
Botic Van de Zandschulp, Netherlands, def. Carlos Alcaraz (3), Spain, 6-1, 7-5, 6-4.
Day 4 women's singles, second round results
Anna Kalinskaya (15), Russia, def. Anna Bondar, Hungary, 6-2, 6-4.
Diana Shnaider (18), Russia, def. Clara Tauson, Denmark, 6-4, 6-4.
Yulia Putintseva (30), Kazakhstan, def. Wang Xinyu, China, 6-1, 7-6 (4).
Jasmine Paolini (5), Italy, def. Karolina Pliskova, Czechia, 0-0, ret.
Jessica Bouzas Maneiro, Spain, def. Katie Boulter (31), Britain, 7-5, 7-5.
Ashlyn Krueger, United States, def. Mirra Andreeva (21), Russia, 6-1, 6-4.
Sara Errani, Italy, def. Caroline Dolehide, United States, 7-5, 7-5.
Beatriz Haddad Maia (22), Brazil, def. Sara Sorribes Tormo, Spain, 6-2, 6-1.
Iga Swiatek (1), Poland, def. Ena Shibahara, Japan, 6-0, 6-1.
Jessika Ponchet, France, def. Elena Rybakina (4), Kazakhstan, walkover.
Anastasia Potapova, Russia, def. Varvara Lepchenko, United States, 6-3, 6-4.
Liudmila Samsonova (16), Russia, def. Marie Bouzkova, Czechia, 3-6, 7-6 (1), 6-3.
Jessica Pegula (6), United States, def. Sofia Kenin, United States, 7-6 (4), 6-3.
Anastasia Pavlyuchenkova (25), Russia, def. Elisabetta Cocciaretto, Italy, 5-7, 6-1, 6-2.
Karolina Muchova, Czechia, def. Naomi Osaka, Japan, 6-3, 7-6 (5).
Caroline Wozniacki, Denmark, def. Renata Zarazua, Mexico, 6-3, 6-3.
Day 4 men's doubles, first round results
Marcel Granollers, Spain, and Horacio Zeballos (1), Argentina, def. Camilo Ugo Carabelli and Francisco Cerundolo, Argentina, 6-4, 6-2.
John-Patrick Smith, Australia, and Andreas Mies, Germany, def. Sebastian Ofner, Austria, and Alexandre Muller, France, 6-3, 6-4.
Matwe Middelkoop, Netherlands, and Alexander Erler, Austria, def. Ariel Behar, Uruguay, and Luke Johnson, Britain, 6-3, 6-4.
Fabrice Martin and Jonathan Eysseric, France, def. Evan King and Brandon Nakashima, United States, 7-6 (6), 7-5.
Jackson Withrow and Nathaniel Lammons (13), United States, def. Mitchell Krueger and Reese Stalder, United States, 6-7 (7), 7-5, 6-4.
Roberto Carballes Baena, Spain, and Federico Coria, Argentina, def. Thiago Seyboth Wild, Brazil, and Pavel Kotov, Russia, 7-5, 6-4.
Robert Cash and James Tracy, United States, def. Tristan-Samuel Weissborn, Austria, and Alexander Shevchenko, Russia, 6-3, 6-4.
Marcelo Melo and Rafael Matos, Brazil, def. Pablo Carreno Busta and Sergio Martos Gornes, Spain, 7-5, 6-4.
Rohan Bopanna, India, and Matthew Ebden (2), Australia, def. Robin Haase and Sander Arends, Netherlands, 6-3, 7-5.
Lloyd Glasspool, Britain, and Rinky Hijikata, Australia, def. Diego Hidalgo, Ecuador, and Alejandro Tabilo, Chile, 6-4, 6-7 (5), 6-3.
Andre Goransson, Sweden, and Sem Verbeek, Netherlands, def. Jamie Murray, Britain, and John Peers, Australia, 4-6, 7-6 (6), 7-6 (11).
Hugo Nys, Monaco, and Jan Zielinski (12), Poland, def. Pedro Martinez and Jaume Munar, Spain, 7-6 (4), 7-5.
Simone Bolelli and Andrea Vavassori (5), Italy, def. Casper Ruud, Norway, and William Blumberg, United States, 6-3, 6-4.
Sander Gille and Joran Vliegen, Belgium, def. Roman Safiullin, Russia, and Miomir Kecmanovic, Serbia, 6-4, 6-7 (6), 6-2.
Nikola Mektic, Croatia, and Wesley Koolhof (11), Netherlands, def. Thanasi Kokkinakis, Australia, and Tallon Griekspoor, Netherlands, 6-2, 7-6 (4).
Day 4 women's doubles, first round results
Olivia Nicholls, Britain, and Tereza Mihalikova, Slovakia, def. Lulu Sun, New Zealand, and Wang Xiyu, China, 6-4, 6-3.
Asia Muhammad, United States, and Heather Watson, Britain, def. Yuan Yue, China, and Moyuka Uchijima, Japan, 7-5, 7-6 (0).
Ivana Corley and Carmen Corley, United States, def. Ekaterina Alexandrova and Anna Blinkova, Russia, 6-1, 6-3.
Maia Lumsden, Britain, and Anna Siskova, Czechia, def. Monica Niculescu, Romania, and Hanyu Guo, China, 3-6, 7-5, 7-5.
Elena-Gabriela Ruse, Romania, and Marta Kostyuk, Ukraine, def. Kateryna Baindl, Ukraine, and Katie Volynets, United States, 6-1, 7-6 (5).
Zhang Shuai, China, and Kristina Mladenovic, France, def. Hsieh Su-wei, Taiwan, and Elise Mertens (2), Belgium, 6-2, 6-3.
Gabriela Dabrowski, Canada, and Erin Routliffe (1), New Zealand, def. Yulia Putintseva, Kazakhstan, and Leylah Annie Fernandez, Canada, 6-4, 6-2.
Makoto Ninomiya, Japan, and Xinyu Jiang, China, def. Anna Bondar, Hungary, and Clara Burel, France, 6-1, 6-2.
Alicja Rosolska, Poland, and Catherine Harrison, United States, def. Anhelina Kalinina, Ukraine, and Martina Trevisan, Italy, 5-7, 7-6 (9), 6-3.
Harriet Dart, Britain, and Diane Parry, France, def. Linda Noskova, Czechia, and Diana Shnaider, Russia, 3-6, 6-3, 7-6 (6).
Sara Errani and Jasmine Paolini (6), Italy, def. Wang Yafan, China, and Miyu Kato, Japan, 6-3, 6-2.
Irina Khromacheva, Russia, and Anna Danilina, Kazakhstan, def. Iva Jovic and Tyra Caterina Grant, United States, 7-6 (6), 5-7, 6-2.
Aldila Sutjiadi, Indonesia, and Ena Shibahara (16), Japan, def. Tatjana Maria, Germany, and Anna-Karolina Schmiedlova, Slovakia, 6-4, 6-3.
Alexandra Panova, Russia, and Giuliana Olmos (13), Mexico, def. Arantxa Rus, Netherlands, and Nina Stojanovic, Serbia, 6-0, 5-7, 6-1.
Taylor Townsend, United States, and Katerina Siniakova (3), Czechia, def. Lucia Bronzetti, Italy, and Liudmila Samsonova, Russia, 5-7, 6-2, 6-2.
Magda Linette, Poland, and Peyton Stearns, United States, def. Yana Sizikova and Anastasia Potapova, Russia, 7-5, 3-6, 6-3.
Day 4 mixed doubles, second round
Matthew Ebden, Australia, and Barbora Krejcikova (4), Czechia, def. Austin Krajicek, United States, and Hao-Ching Chan, Taiwan, 6-2, 6-2.
Thai-Son Kwiatkowski and Ashlyn Krueger, United States, def. Neal Skupski, Britain, and Desirae Krawczyk (5), United States, 6-3, 7-5.
Jackson Withrow and Alycia Parks, United States, def. Michael Venus and Erin Routliffe (2), New Zealand, 6-4, 6-4.
Nadiia Kichenok, Ukraine, and Hugo Nys, Monaco, def. Ivan Dodig, Croatia, and Nicole Melichar-Martinez (6), United States, 6-7 (8), 7-6 (5), 11-9.
Who are the betting favorites for the U.S. Open?
Naomi Osaka is favored again against a tough opponent, according to BetMGM Sportsbook, just as she was in her first-round victory over No. 10 seed Jelena Ostapenko. Osaka, the two-time U.S. Open champion, is -155 for her second-round match against Karolina Muchova, the 2023 French Open runner-up. Muchova is listed at +120.
In a matchup between Americans, 2020 Australian Open champion Sofia Kenin is an underdog against Jessica Pegula in her first match since eliminating 2021 U.S. Open champion Emma Raducanu. Kenin is at +475, while the No. 6-seeded Pegula is -750.
Carlos Alcaraz and Jannik Sinner are heavy favorites in their second-round matches, while Dan Evans, after his U.S. Open-record match that lasted 5 hours, 35 minutes in the first round, is at -120 in his match against Mariano Navone (-105).
What does the current bracket look like?
For live updates and latest bracket results, visit USOpen.org.