The American Coco Gauff, ranked third in the world, won her first title at the WTA Finals in tennis after a thrilling victory in the final against China’s Zheng Qinwen, ranked seventh, with scores of 3-6, 6-4, 7-6 (6-2), on Saturday in Riyadh.

With this win, Gauff, at the age of 20, became the youngest champion of the tournament, which brings together the season’s top eight players, since Russia’s Maria Sharapova claimed the title in 2004.