Giovanni Mpetshi Perricard fell to 10th seed Lorenzo Musetti in four sets. GMP entered the US Open following a run to the semi-finals in Winston-Salem so the game is in a good place.
Felix Auger-Aliassime saw off lucky loser Billy Harris in straight sets but the match had plenty of momentum swings. The 25th seed spoke about the tricky conditions and the role of the crowd. FAA will play Roman Safiullin next after the Russian beat fan favourite Gael Monfils in five epic sets on a packed Court 5.
Hailey Baptiste secured her first singles win at the US Open in impressive style against Katerina Siniakova. Baptiste, a direct main-draw entrant in New York for the first time, has a mouth watering second-round match to look forward.
The night session was all about fashions and heart. Naomi Osaka, wearing an all red night fit, saw off Greet Minnen in straight sets, while Coco Gauff, who was also donning red, eventually got past Ajla Tomljanovic in a topsy turvy three-setter.
Listen out for post-match press snippets from Auger-Aliassime and Baptiste.