Coco Gauff overpowered Karolina Muchova in straight sets to win the China Open on Sunday for her second title of the year and eighth overall. The 20-year-old American and last year's US Open champion stormed to victory 6-1, 6-3 in one hour, 16 minutes in Beijing. After a disappointing few months by her standards, including surrendering her New York crown in the last 16, Gauff adds the China Open to her triumph in Auckland in January. The sixth-ranked Gauff, under a new coaching team in the Chinese capital after splitting with Brad Gilbert last month, wiped away tears at the end.