Rank Lane Name Nationality Time Notes 01 ! 4 Xu Jiayu China 52.44 02 ! 3 Matt Grevers United States 52.48 03 ! 5 Ryan Murphy United States 52.59 4 6 Ryosuke Irie Japan 53.03 5 2 Grigory Tarasevich Russia 53.12 6 7 Mitch Larkin Australia 53.24 7 1 Guilherme Guido Brazil 53.66 8 8 Corey Main New Zealand 53.87