Final answer:
Naomi Osaka won the Women's title at the 2018 U.S. Open by defeating Serena Williams. This victory was monumental in Osaka's career, inaugurating her as a significant contender in women's tennis. She remains an influential figure in the sport today.
Step-by-step explanation:
The tennis player who defeated Serena Williams to clinch the women's title at the 2018 U.S. Open is Naomi Osaka. This historic match took place on September 9, 2018, marking Osaka's first Grand Slam title.
Naomi Osaka, born on October 16, 1997, in Chuo Ward, Osaka, Japan, is a professional tennis player holding three Grand Slam singles titles. The 2018 U.S. Open was her career breakthrough, where she bested Serena Williams, a tennis icon, in straight sets, 6-2, 6-4. Notably, Osaka was just 20 years old when she achieved this milestone.
This victory shot her to the limelight and she became an inspiration for many young tennis players around the world. To this day, Osaka continues to be a vital figure in women's tennis, with several more major wins following her successful 2018 U.S. Open campaign.
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