Daniil Medvedev opened his tournament with a 6-4, 6-2, 6-4 win over Hugo Gaston, and 18th seed Jiri Lehecka needed four sets to see off Pablo Carreno Busta 6-1, 7-6(5), 4-6, 6-2.
Tommy Paul dropped the first set to Coleman Wong before winning 6-7(3), 6-1, 6-3, 6-3, while 26th seed Arthur Rinderknech recovered from an opening-set tiebreak to beat Sho Shimabukuro 6-7(4), 6-2, 7-6(4), 6-2.
The longest match of the day belonged to Dino Prizmic, who came through 2-6, 6-3, 6-3, 5-7, 7-5 against Aleksandr Shevchenko. Kamil Majchrzak, Daniel Merida, Toby Samuel, Lloyd Harris and Yibing Wu also advanced.
In the women's draw, Marta Kostyuk beat Storm Hunter 6-4, 6-1, Leylah Fernandez saw off Shuai Zhang 6-3, 6-2, and Jasmine Paolini came through 6-3, 3-6, 6-4 against Veronika Erjavec.
Summarised by TennisArena from reporting by Sky Sports — https://www.skysports.com/tennis/news/32833/13577827/us-open-draw-schedule-results-from-the-final-grand-slam-tournament-of-2026-at-flushing-meadows-in-new-york