US Open Day 10: Four Americans advance to semis

Day 10 of the U.S. Open tennis tournament in Flushing Meadows, New York featured quarterfinal action in men's and women's singles.

Sinner reaches US Open semis for the first time

Top-ranked Jannik Sinner has reached the U.S. Open semifinals for the first time by getting past 2021 champion Daniil Medvedev 6-2, 1-6, 6-1, 6-4. Sinner took over as the title favorite after Week 1 exits by Novak Djokovic and Carlos Alcaraz. His victory on Wednesday night makes him the only man remaining in the field with a Grand Slam trophy. He won his first at the Australian Open in January by beating Medvedev in the final in five sets after dropping the first two. Sinner will will go up against No. 25 Jack Draper of Britain on Friday for a berth in the title match.

Pegula upsets world no. 1 Swiatek

Jessica Pegula has pulled off a major upset at the U.S. Open by beating No. 1-ranked Iga Swiatek 6-2, 6-4 to reach her first Grand Slam semifinal. Pegula's victory on Wednesday night in Arthur Ashe Stadium came after she had started her career with an 0-6 record in major quarterfinals. Swiatek served poorly in the first set and her forehand was a real problem. Pegula used terrific defense to keep forcing Swiatek to hit an extra shot. The No. 6-seeded Pegula is a 30-year-old American. She has won 14 of her past 15 matches and will play Karolina Muchova of the Czech Republic on Thursday for a berth in the final.

Draper defeats Minaur; hasn't dropped a set all tournament

Jack Draper has defeated Alex de Minaur 6-3, 7-5, 6-2 to become the first man since 2020 to reach the U.S. Open semifinals without dropping a set. The No. 25 seed from Britain relied on his serve that reached 128 mph to set up some of his 40 winners in the match, and he broke the 10th-seeded de Minaur’s serve six times. Draper is the first British man to reach the U.S. Open semifinals since Andy Murray won the title in 2012. He will face either top-seeded Jannik Sinner or No. 5 Daniil Medvedev in Friday’s semifinals.

Muchova reaches semis for second straight year

Karolina Muchova is back in the U.S. Open semifinals for the second straight year. She punctuated her return from wrist surgery by beating No. 22 Beatriz Haddad Maia 6-1, 6-4 on Wednesday. Muchova lost to eventual champion Coco Gauff in the 2023 semis in Flushing Meadows, then missed nearly 10 months because of a wrist injury she suffered during the tournament. The Czech returned to action in June just before Wimbledon, and a little more than two months later she is into her fourth career Grand Slam semifinal. Muchova will face No. 6 Jessica Pegula on Thursday in the semifinals.

Below are all of today's winners. (For Day 9 results click here.)

Day 10 men's singles, quarterfinal results

Jack Draper (25), Britain, def. Alex de Minaur (10), Australia, 6-3, 7-5, 6-2.

Jannik Sinner (1), Italy, def. Daniil Medvedev (5), Russia, 6-2, 1-6, 6-1, 6-4.

Day 10 women's singles, quarterfinal results

Karolina Muchova, Czechia, def. Beatriz Haddad Maia (22), Brazil, 6-1, 6-4.

Jessica Pegula (6), United States, def. Iga Swiatek (1), Poland, 6-2, 6-4.

Day 10 women's doubles, semifinal results

Lyudmyla Kichenok, Ukraine, and Jelena Ostapenko (7), Latvia, def. Hao-Ching Chan, Taiwan, and Veronika Kudermetova (10), Russia, 6-1, 6-2.

Zhang Shuai, China, and Kristina Mladenovic, France, def. Taylor Townsend, United States, and Katerina Siniakova (3), Czechia, 7-5, 4-6, 6-3.

Who are the betting favorites for the US Open?

Sinner, who became the favorite to win the U.S. Open title after the early eliminations of Carlos Alcaraz and Novak Djokovic, is a solid favorite in his match against Medvedev on Tuesday, according to BetMGM Sportsbook. The Italian is listed at -250, with Medvedev at +195. De Minaur is a -130 favorite against Draper, who is at +105. Swiatek, the 2022 U.S. Open women's champion, is listed at -350 against Pegula (+275), while Muchova is at -250 against Haddad Maia, at +190.

What happened Tuesday at the US Open?

Aryna Sabalenka and Emma Navarro set one semifinal matchup with their victories. The No. 2-seeded Sabalenka repeated her Australian Open victory of Zheng Qinwen and did it emphatically, winning 6-1, 6-2. Navarro, the No. 13 seed, won 24 of the final 28 points in a stunning turnaround against No. 26 Paula Badosa to win 6-2, 7-5. No. 12 Taylor Fritz then became another first-time American major semifinalist, beating No. 4 Alexander Zverev 7-6 (2), 3-6, 6-4, 7-6 (3). He will play No. 20 Frances Tiafoe, who reached his second U.S. Open semifinal when No. 9 Grigor Dimitrov stopped playing with a leg injury in the fourth set. That guaranteed the U.S. will have its first man in the U.S. Open final since Andy Roddick in 2006.

What is the US Open schedule for the rest of the tournament?

—Wednesday, Sept. 4: Quarterfinals (Women and Men)

—Thursday, Sept. 5: Women’s Semifinals

—Friday, Sept. 6: Men’s Semifinals

—Saturday, Sept. 7: Women’s Final

—Sunday, Sept. 8: Men’s Final

What does the current bracket look like?

For live updates and latest bracket results, visit USOpen.org.