The 26-year-old from Belarus clubbed 40 winners to become the first woman since Angelique Kerber in 2016 to capture both hardcourt majors in the same season.
At long last, Sabalenka held her nerve until the bitter end in two intense, tempestuous sets that pushed her to her mental limits before closing out her first title in New York with a supreme 7-5, 7-5 win over a gritty Jessica Pegula.
Hoisting the Tiffany-designed cup in Flushing brought a joyful end to Sabalenka's tumultuous and emotionally draining 2024 season.
The 30-year-old Pegula had waited a long time to reach her first major final but could not match her opponent’s raw power despite the noisy backing of the New York crowd.