Swiatek fell 3-6 6-3 6-1 to former French Open champion Jelena Ostapenko and Sabalenka - who has a 20-2 record at the majors this year - will aim to push on after accomplishing another of her main objectives for the season.
"Reaching the WTA world number one singles ranking is something I've dreamed of ever since I was a little girl when I started playing tennis," Sabalenka, 25, said.
"I'm feeling really well on court, really comfortable.
I always say that I can be better, but right now I'm really happy with the level that I'm playing."
Reporting by Shrivathsa Sridhar in Bengaluru; Editing by Ken FerrisOur Standards: The Thomson Reuters Trust Principles.
Persons:
France's Clara Burel REUTERS, Shannon Stapleton, Daria Kasatkina, Swiatek, Jelena Ostapenko, I've, Arthur Ashe, Carlos Alcaraz, Matteo Arnaldi, Alcaraz, Madison Keys, Jessica Pegula, Alexander Zverev, Louis Armstrong, Peyton Stearns, Marketa Vondrousova, Andrey Rublev, Daniil Medvedev, Briton Jack Draper, Alex de Minaur, Zheng Qinwen, Shrivathsa Sridhar, Ken Ferris
Organizations:
Aryna, U.S, Madison, Louis, Wimbledon, Briton, Tunisian, U.S ., Thomson
Locations:
Flushing Meadows , New York, United States, Belarus, Belarusian, York, Flushing Meadows, Bengaluru