The 21-year-old Gauff is also the youngest player to register 10 career match-wins at this tournament since Justine Henin in 2003.<\/p>\r\n\r\n
Gauff saw a 4-1 first-set lead slip away, and at 4-4, 40-15, the American lost five of the next eight points with double faults. Kudermetova took advantage, firing strong groundstroke winners from both wings as she wrapped up the set.<\/p>\r\n\r\n
Three more Gauff double faults in the opening game of the second set gave Kudermetova a hefty set-and-a-break lead, but the typically gritty Gauff started to turn the match around as the set progressed. Gauff was able to pull back level, breaking for 3-3 with a forehand return winner, WTA reports.<\/p>\r\n\r\n
Gauff had to save break points in both her 4-4 and 5-5 service games, barely denying Kudermetova chances to serve for a straight-sets win. But the American did scrape to 6-5, at which point Kudermetova blinked, slamming a backhand smash into the net to give Gauff the second set.<\/p>\r\n\r\n
After that set, Gauff took charge, breaking Kudermetova at love for a 2-0 lead in the decider. Gauff eased home from there and finished the match with a 5-for-10 break point conversion rate.<\/p>\r\n\r\n
Gauff had to save break points in both her 4-4 and 5-5 service games, barely denying Kudermetova chances to serve for a straight-sets win. But the American did scrape to 6-5, at which point Kudermetova blinked, slamming a backhand smash into the net to give Gauff the second set.<\/p>\r\n\r\n
Mboko is the fifth 18-year-old to reach the Round of 16 in Canada in the last 10 years, joining Belinda Bencic, Catherine Cartan Bellis, Iga Swiatek and Coco Gauff -- the latter of whom is her next opponent.<\/p>\r\n\r\n