Rank Lane Name Nationality Time Notes 1 5 Ryan Murphy United States 52.95 Q 2 4 Matt Grevers United States 52.97 Q 3 6 Guilherme Guido Brazil 53.71 Q 4 2 Li Guangyuan China 53.84 4 8 Kliment Kolesnikov Russia 53.84 6 1 Yakov Toumarkin Israel 53.92 7 3 Apostolos Christou Greece 54.04 8 7 Tomasz Polewka Poland 54.12