The 29-year-old won the title after beating China’s Yue Yuan in the final with a score of 6-2, 6-3 on Sunday.
After the match, Pegula was involved in a hilarious moment. The tournament orgnaiser asked to pose with one finger showing that she was the best player in the competition.
"I have so many emotions right now": Leylah Fernandez reaches first final in nearly 600 days in Hong Kong
However, the Buffalo-born had a long time to understand what she was asked to do in the first place.
The result will be a big for Pegula who has now set her sights on playing in the last big competitions of the WTA calendar, the Finals.
The world number three has had a mixed year at the highest level where despite participating in the main round of all four Grand Slams, she only managed to qualify for the quarterfinal or beyond in just two of them.
"My greatest desire is to win the Davis Cup" says Novak Djokovic with sights set also on at least one title before 2023 season concludes
In the Australian Open, Pegula was knocked out of the competition after losing to the former world number one Victoria Azarenka in the quarterfinal with a score of 6-4, 6-1.
At Wimbledon, she was once again knocked out of the tournament after losing to Czech Republic’s Marketa Vondrousova with a score of 6-4, 2-6, 6-4.