Day 9 of the U.S. Open tennis tournament in Flushing Meadows, New York marked the start of quarterfinal action in men's and women's singles.
Frances Tiafoe has reached the U.S. Open semifinals for the second time in three years when his quarterfinal opponent, Grigor Dimitrov, stopped playing because of an injury in the fourth set. Tiafoe was leading 6-3, 7-6 (5), 6-3, 4-1 Tuesday night when Dimitrov retired from the match. Tiafoe advances to an all-American semifinal against Taylor Fritz, guaranteeing the United States a representative in the men’s final. Fritz eliminated No. 4 Alexander Zverev in four sets earlier Tuesday to get to a Grand Slam semifinal for the first time.
Emma Navarro has reached her first Grand Slam semifinal by beating Paula Badosa 6-2, 7-5 at the U.S. Open. Navarro is a No. 13-seeded American who had never even won a match in the main draw of her home major before this year. She advanced to face No. 2 Aryna Sabalenka or seventh-seeded Zheng Qinwen in Thursday’s semis. Navarro, who ousted defending champion Coco Gauff in the fourth round, ran through the first set Tuesday in 29 minutes, but the No. 26-seeded Badosa opened a 5-1 lead in the second. Navarro then took six straight games as Badosa’s game fell apart.
Below are all of today's winners. (For Day 8 results click here.)
Day 9 men's singles, quarterfinal results
Taylor Fritz (12), United States, def. Alexander Zverev (4), Germany, 7-6 (2), 3-6, 6-4, 7-6 (3).
Frances Tiafoe (20), United States, de. Grigor Dimitrov (9), Bulgaria, 6-3, 7-6 (5), 6-3, 4-1
Day 9 women's singles, quarterfinal results
Emma Navarro (13), United States, def. Paula Badosa (26), Spain, 6-2, 7-5.
Aryna Sabalenka (2), Belarus, def. Zheng Qinwen (7), China, 6-1, 6-2.
Get a weekly recap of the latest San Francisco Bay Area housing news. >Sign up for NBC Bay Area’s Housing Deconstructed newsletter.
Day 9 men's doubles, quarterfinal results
Kevin Krawietz and Tim Puetz (10), Germany, def. Maximo Gonzalez and Andres Molteni (16), Argentina, 6-7 (11), 6-4, 6-1.
Jordan Thompson and Max Purcell (7), Australia, def. Marcel Granollers, Spain, and Horacio Zeballos (1), Argentina, 7-6 (4), 6-4.
Jackson Withrow and Nathaniel Lammons (13), United States, def. Nikola Mektic, Croatia, and Wesley Koolhof (11), Netherlands, 6-1, 6-7 (5), 6-4.
Mate Pavic, Croatia, and Marcelo Arevalo-Gonzalez (4), El Salvador, def. Michael Venus, New Zealand, and Neal Skupski (8), Britain, 7-6 (1), 6-1.
Day 8 women's doubles, quarterfinal results
Zhang Shuai, China, and Kristina Mladenovic, France, def. Nicole Melichar-Martinez, United States, and Ellen Perez (5), Australia, 7-6 (2), 6-4.
Taylor Townsend, United States, and Katerina Siniakova (3), Czechia, def. Demi Schuurs, Netherlands, and Luisa Stefani (8), Brazil, 6-2, 6-3.
Lyudmyla Kichenok, Ukraine, and Jelena Ostapenko (7), Latvia, def. Irina Khromacheva, Russia, and Anna Danilina, Kazakhstan, 7-6 (2), 6-4.
Hao-Ching Chan, Taiwan, and Veronika Kudermetova (10), Russia, def. Gabriela Dabrowski, Canada, and Erin Routliffe (1), New Zealand, 4-6, 7-5, 6-3.
Day 8 mixed doubles, semifinal results
Sara Errani and Andrea Vavassori (3), Italy, def. Aleksandar Kovacevic and Tyra Caterina Grant, United States, 6-3, 7-5.
Donald Young and Taylor Townsend, United States, def. Rohan Bopanna, India, and Aldila Sutjiadi (8), Indonesia, 6-3, 6-4.
Who are the betting favorites for the U.S. Open?
Dimitrov is a slight money-line favorite for his quarterfinal against Tiafoe on Tuesday, listed at -155, according to BetMGM Sportsbook. Tiafoe is at +125. Zverev, at -175, is a somewhat bigger favorite in his match against Fritz (+140). Badosa, listed at -130, is favored against Navarro (+105), while Sabalenka is the day’s biggest favorite in the singles matches, at -350 against Zheng (+250). No. 1 Jannik Sinner is the favorite to leave with the men’s championship at +110, followed by Zverev and Daniil Medvedev at +300. Sabalenka, at +150, is the pick for the women’s title, ahead of 2022 champion Iga Swiatek, listed at +220.
What is the U.S. Open schedule for the rest of the tournament?
—Tuesday-Wednesday: Quarterfinals (Women and Men)
—Sept. 5: Women’s Semifinals
—Sept. 6: Men’s Semifinals
—Sept. 7: Women’s Final
—Sept. 8: Men’s Final
What does the current bracket look like?
For live updates and latest bracket results, visit USOpen.org.
