US Open Tennis 2021 Results: Winners, Scores from Thursday's Singles Bracket

Alexander Zverev turned in one of the most comprehensive performances of the 2021 U.S. Open on Thursday afternoon. 

The No. 4 seed breezed past Albert Ramos-Vinolas in one hour and 14 minutes in a 6-1, 6-0, 6-3 win inside Arthur Ashe Stadium to advance to the third round.

Zverev's performance was an extension of the strong form he entered New York in. He won the gold medal at the Tokyo Olympics and the final U.S. Open tune-up event in Cincinnati. 

The German was one of the first men to book his spot in the third round, with No. 22 seed Reilly Opelka joining him on the list of early afternoon winners.

Ashleigh Barty opened the afternoon schedule on Ashe with a straight-sets win over Clara Tauson. The top-seeded Australian has not dropped a set in two matches and has a favorable draw in front of her to make a push deep into the second week. 

Thursday's Key Results

Men's Singles

No. 4 Alexander Zverev def. Albert Ramos-Vinolas, 6-1, 6-0, 6-3

No. 6 Matteo Berrettini def. Corentin Moutet, 7-6 (2), 4-6, 6-4, 6-3

Andreas Seppi def. No. 10 Hubert Hurkacz, 2-6, 6-4, 6-4, 7-6 (6)

No. 17 Gael Monfils def. Steve Johnson, 7-5, 4-6, 6-4, 6-4

No. 22 Reilly Opelka def. Lorenzo Musetti, 7-6 (1), 7-5, 6-4

Zverev produced the best three-set performance from any of the men's singles favorites so far in New York. 

The 24-year-old barely broke a sweat to take down Ramos-Vinolas in 74 minutes. He won 93 percent of his first-serve points, delivered 11 aces and won 77 points compared to 40 from the Spaniard. 

If Zverev plays at this level, no one in his part of the draw will be able to stop him before the semifinal round. 

The 2020 U.S. Open runner-up is on a collision course with Novak Djokovic in the semifinals. The Serb plays his second-round match against Tallon Griekspoor on Thursday night. 

Opelka became the first seeded player to enter the third round on Thursday afternoon by way of a three-set victory over Lorenzo Musetti. 

The 22nd-seeded American has an opportunity in front of him to reach the second week of the competition.

Pablo Carreno Busta was eliminated from Opelka's section of the draw in the first round. Denis Shapovalov is the only seeded player left in that part of the draw. 

Matteo Berrettini bounced back from dropping a set to win in four sets over Corentin Moutet. The Italian is in line to get a shot at Djokovic in the quarterfinals. 

The loss suffered by No. 10 seed Hubert Hurkacz opened the door for Berrettini to cruise into that matchup. The Pole fell in four sets to Andreas Seppi. 

Women's Singles

No. 1 Ashleigh Barty def. Clara Tauson, 6-1, 7-5

No. 7 Iga Swiatek def. Fiona Ferro, 3-6, 7-6 (3), 6-0

No. 10 Petra Kvitova def. Kristyna Pliskova, 7-6 (4), 6-2

No. 11 Belinda Bencic def. Martina Trevisan, 6-3, 6-1

No. 14 Anastasia Pavlyuchenkova def. Anna Karolina Schmiedlova, 6-2, 5-7, 6-2

No. 17 Maria Sakkari def. Katerina Siniakova, 6-4, 6-2

No. 23 Jessica Pegula def. Misaki Doi, 6-3, 6-2

Varvara Gracheva def. No. 24 Paula Badosa, 6-4, 6-4

No. 28 Anett Kontaveit def. Jil Teichmann, 6-4, 6-1

Barty picked up her second consecutive win over an unseeded player to begin play on the tournament's primary showcase court. 

The Australian delivered 11 aces and won 80 percent of her first-serve points against Clara Tauson.

The Dane put up more a fight in the second set, but she was unable to consolidate any of the break points she earned. 

Barty was 3-for-8 on her second-set break-point opportunities, and Tauson went 2-for-5 on those chances. 

The path is wide open for Barty to cruise into the quarterfinals in New York. She is the only seeded player left in her portion of the draw. 

Her first seeded opponent would come in the quarterfinals from a loaded section that includes Iga Swiatek and Belinda Bencic.

Bencic, who won the Olympic gold medal in Tokyo, breezed past Martina Trevisan in two sets, while Swiateak bounced back from losing the first set to win the final two frames of her match with Fiona Ferro.

Swiatek produced the most dominant single-set performance of the women's seeds on Thursday, when she swept Ferro in the third set to clinch her third-round position. 

Maria Sakkari, Anastasia Pavlyuchenkova and Anett Kontaveit were among the other women's seeds to advance on Thursday. 

Statistics obtained from USOpen.org.