07:30 CET - Wrapping up for the day, men's third seed Alexander Zverev has brushed aside Alejandro Tabilo in straight sets to move into the second round at the US Open. The German won 6-2, 7-6, 6-4.
And with that, the men's second-round bracket is complete - catch up on the scores and the draw here.
You can catch up on all the women's results here.
05:15 CET - World number 60 Jacob Fearnley gets an impressive win by taking out Roberto Bautista Agut 7-5, 6-2, 5-7, 6-4.
04:40 CET - Tommy Paul advances to the second round in a 6-3, 6-3, 6-1 success over Elmer Moller.
04:15 CET - Coco Gauff survives a nail-biting first round contest as she gets the better of Ajla Tomljanovic 6-4, 6-7 (2), 7-5.
03:10 CET - Roman Safiulin finds his way past a very tricky first round match as he edges Gael Monfils 6-4, 2-6, 6-1, 3-6, 6-4 to progress.
02:50 CET - Donna Vekic comes from a set down to defeat Jessica Bouzas Mineiro 3-6, 7-5, 6-3.
02:35 CET - Naomi Osaka is safely through to the next round after beating Greetje Minnen 6-3, 6-4. The former champion moves on to round two.
02:30 CET - Lorenzo Sonego gets knocked out at the first hurdle in five sets, as Tristan Schoolkate defeats the Italian 6-3, 7-6 (8), 1-6, 1-6, 7-6 (6).
01:55 CET - Hailey Baptiste marches on in round two of the US Open as she tops Katerina Siniakova 7-5, 6-3.
01:30 CET - The all-Australian match-up goes Alex De Minaur's way as he beats Christopher O'Connell 6-3, 6-4, 6-4. The world number eight marches on to round two.
01:00 CET - Stefanos Tsitsipas picks up his second win at a major this year as the 26th seed defeats Alexandre Muller 4-6, 6-0, 6-1, 7-6 (5).
00:25 CET - Sorana Cirstea continues her fine form as she gets past Argentinian Solana Sierra 7-5, 6-0 in a match with two contrasting sets. Meanwhile, Laura Siegemund pulls off the upset, taking down Diana Shnaider 7-6 (3), 2-6, 6-3 in two and a half hours.
23:51 CET - World number 12 Ekaterina Alexandrova is through thanks to a 6-4, 6-1 victory over Anastasija Sevastova.
23:26 CET - 26th Sofia Kenin has been defeated by fellow American Ashlyn Krueger, who fought back from a set down to win 5-7, 6-4, 6-2.
23:04 CET - 21st seed Linda Noskova has moved into the second round of the US Open for the second time, with the 20-year-old beating Dalma Galfi 6-4, 7-5.
21:39 CET - Wimbledon runner-up Amanda Anisimova, one of the home nation's biggest hopes, has advanced with a 6-3, 6-2 win over Kimberly Birrell, while Alexei Popyrin has beaten Emil Ruusuvuori 6-3, 6-4, 7-6 and will next face Sinner.
21:08 CET - Former American number one Danielle Collins, struggling with a back injury, has lost 6-2, 6-0 to Jaqueline Cristian in what will be her last match of 2025.
20:57 CET - Jannik Sinner has cruised into the next round, beating Vit Kopriva 6-1, 6-1, 6-2 to advance, but things haven't gone so well for another former US Open champion with Marin Cilic losing 6-4, 6-1, 6-4 to Alexander Bublik.
19:43 CET - Men's 10th seed Lorenzo Musetti is safely through after recovering from a set down to defeat big-serving Frenchman Giovanni Mpetshi Perricard 6-7(3), 6-3, 6-4, 6-4.
Meanwhile, on the women's side of the tournament, Beatriz Haddad Maia and Maya Joint have also progressed to the next round.
19:20 CET - Top seed and defending champion Jannik Sinner is currently on court for his first-round clash against Vit Kopriva.
Follow the match live with Flashscore
19:16 CET - Canada's Denis Shapovalov has eased into the second round, with the 27th seed defeating Marton Fucsovics 6-4, 6-4, 6-0.
18:52 CET - Iga Swiatek has produced a typically dominant display this evening to seal her place in the next round. The Pole swept aside Emiliana Arango 6-1, 6-2 in just 61 minutes.
18:45 CET - Women's 27th seed Marta Kostyuk has progressed in New York, with the Ukrainian seeing off Katie Boulter in straight sets, 6-4, 6-4.
Suzan Lamens is also through to the second round after a convincing 6-4, 6-2 victory over Valerie Glozman.
17:18 CET - Play is now underway for the day in New York, with Lorenzo Musetti, Marta Kostyuk and Francisco Cerundolo among those first up on court.
Keep track of the men's matches here and the women's action here.
14:40 CET - Good afternoon and welcome to our coverage of today's tennis at the US Open!
We're just over two hours away from play getting started in New York as the first round draws to a close in the ATP and WTA tournaments.
First up at 17:00 CET, Lorenzo Musetti takes on the big-serving Giovanni Mpetshi Perricard, while shortly after, second seed Iga Swiatek comes up against Emiliana Arango.
Later on, Jannik Sinner, Coco Gauff and Alexander Zverev all begin their campaigns as they target smooth progression into the second round.
Follow all the men's matches here and all the women's action here.