After losing to Gauff in last year’s final, a tearful Sabalenka admitted she had struggled to deal with the crowd, later saying the noise was so loud it “blocked my ears”.
The atmosphere was no different this time around, with Pegula receiving the majority of the support from the packed 23,000-seater stadium.
There were times when Sabalenka looked like the occasion would again get the better of her as she hit 34 unforced errors and five double faults.
Once the type of player who failed to keep her emotions in check, she has taken active steps to strengthen her mentality, including working with a psychologist, to become one of the most consistent competitors on the WTA Tour.
With injuries disrupting her season – she struggled with a stomach problem at the French Open before a shoulder issue ruled her out of Wimbledon – Sabalenka has got back on track with successive titles after beating Pegula in the final of last month’s Cincinnati Open.
“I wish she would have at least let me get one set. We had a tough match in Cincinnati a few weeks ago and she’s one of the best in the world,” Pegula said.
“She’s super powerful and isn’t going to give you anything, she can take the racquet out of your hand.”
Sabalenka’s victory in New York sees her become the first player to win both hard-court Slams in the same year since Angelique Kerber in 2016.