Five British players are in action on Day 2 at Flushing Meadows with Johanna Konta, Andy Murray, Aljaz Bedene, James Ward and Laura Robson getting their campaigns underway.
Johanna Konta v Louisa Chirico
Johanna Konta became the first British player to take their place in Round 2 as she confidently breezed past American wildcard Louisa Chirico 6-3, 6-0 in just one hour.
The British No.2, who won through three rounds of qualifying, took her unbeaten run to 14 as she landed her second ever victory in the main draw of a Grand Slam.
Konta came out the blocks firing and raced into an early 2-0 lead only to see her teenage opponent fight back to win the next two games.
The world No.89 stepped back on the gas though and broke again before serving out the set at her first attempt despite trailing 0-40 and saving three break points.
Konta, who also reached Round 2 in 2012, recently picked up titles in Granby and Vancouver and continued to find the winning formula out on Court 11.
An early break to take a 2-0 advantage in the second never looked like being relinquished and Chirico had no answers to her in-form opponent as Konta reeled off the next few games in dominant fashion.
Aljaz Bedene v Ernests Gulbis
Aljaz Bedene set up a second round clash with Donald Young when his opponent Ernests Gulbis retired when trailing 3-0 in the third set.
The duo had shared the first two sets with Bedene dragging his way back into the match 6-4 after dropping the opener 6-3 against the former world No.10 and ex-French Open semi-finalist.
It is the first time the British No.2 has progressed through his opening match at Flushing Meadows and will fancy his chances against Young who came through a five-set epic with Gilles Simon.
After losing the first set, Bedene got the vital break when leading 4-3 in the second and carried the momentum into the third before his opponent hit a forehand return into the net and walked forward to shake hands at the net for a premature end.
Laura Robson v Elena Vesnina
A clinical third set recovery from Elena Vesnina ended Laura Robson’s encouraging US Open campaign as she continues her comeback from injury.
Robson followed Johanna Konta out onto Court 11 and looked in a good position when leading 4-0 in the final set but the experienced Vesnina fought back to claim a 3-6, 6-3, 7-5 victory.
Lefthander, Robson, returned from a long-term wrist injury at the Aegon International Eastbourne and was looking to win her first Grand Slam match since the 2013 US Open.
She calmed any nerves by saving four break points in the third game before breaking the former world No.21 on her way to heading into a 5-2 lead and clinching the opener on her second set point.
In scorching temperatures of more than 30 degrees, her Russian opponent hit back to lead 3-0 in the second which helped her on her way to levelling the match.
But Robson, who was receiving the majority of the support from the crowd, continued to fire the heavier shots off her groundstrokes with winners off either side.
A 4-0 lead quickly became 4-4 though and despite recovering her composure to hold for 5-4, a couple of double faults saw her go 6-5 behind and exit the singles competition in New York when Vesnina served it out.
James Ward v Thomaz Bellucci
Hard-hitting Brazilian Thomaz Bellucci put an end to James Ward’s US Open hopes with a 6-1, 7-5, 6-3 win.
The tricky left-hander bulldozed his way into Round 2 as three breaks of serve were enough to race through the opener on Court 7 in 25 minutes.
But Ward, playing in the main draw at Flushing Meadows for the first time and completing his set of competing in all four Grand Slams, raised his level in the second set.
Eleven service holds saw the scores reach 6-5 before Bellucci got the only break of the set to head into a commanding two sets to love lead.
The No.30 seed was a tough Round 1 draw for the Aegon GB Davis Cup Team star and after breaking for 3-1 lead he held his nerve to save three break points and extend his lead.
Despite receiving an injury time-out Bellucci closed it out for the loss of two more games to extend his stay in New York.