It’s Day 9 of the U.S. Open tennis tournament in Flushing Meadows, New York and the start of quarterfinal action in men’s and women’s singles.

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.

Still to come Tuesday at the US Open

The year’s last Grand Slam tournament moves into the quarterfinals on Tuesday, with two women’s matches and two men’s matches. No. 4 Alexander Zverev, the 2020 runner-up in New York takes on No. 12 Taylor Fritz at Arthur Ashe Stadium. At night, starting at 7 p.m. EDT, No. 2 Aryna Sabalenka, who lost to Gauff in last year’s final, takes on Olympic gold medalist Zheng Qinwen, before No. 9 Grigor Dimitrov meets No. 20 Frances Tiafoe.

The full Day 9 schedule of play is posted here at the US Open website.

Below is a look at today’s scores so far. (For Day 8 results click here.)

Day 9 men’s singles, quarterfinal results

Check back soon for updates.

Day 9 women’s singles, quarterfinal results

Emma Navarro (13), United States, def. Paula Badosa (26), Spain, 6-2, 7-5.

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.

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.

Day 8 mixed doubles, semifinal results

Check back soon for updates.

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.