15-Year-Old Cori Gauff Defeats Venus Williams at Wimbledon The five-time singles champion was defeated in her first round match in straight sets, 6-4, 6-4. The one hour, nineteen minute match marked Gauff's Wimbledon debut. Venus Williams, via 'NYT' In the Open era, Gauff is the youngest woman ever to qualify for the Wimbledon main draw. Williams and her sister Serena have been role models for Gauff. Gauff has been quoted as saying she wants to be "the greatest of all time." Gauff's second round match is against the Wimbledon 2017 semifinalist, Magdalena Rybarikova.