Czech top seed Tomas Berdych and Wimbledon semi-finalist Milos Raonic advanced while US fifth seed John Isner lost in second-round matches at the ATP and WTA Washington Open. Berdych, seeking his 10th career ATP title and first on US soil, defeated US qualifier Robby Ginepri 6-1, 6-4 on Wednesday at the $1.9 million (1.4m euro) hardcourt tune-up for the US Open. Canadian second seed Raonic fired 16 aces in ousting American Jack Sock 7-6 (7/3), 7-6 (7/3) while American Steve Johnson never faced a break point and withstood a 29-ace barrage to defeat countryman Isner 6-7 (5/7), 6-3, 7-6 (8/6).