Pos  | Rank  | Heat  | Bib | Athlete | Mark  | Details  | Reaction Time  | |
|---|---|---|---|---|---|---|---|---|
1  | 1  | 3  | 1420 | USA | 52.81 SB  | Q  | 0.212  | |
2  | 1  | 2  | 1136 | NED | 52.95   | Q  | 0.199  | |
3  | 1  | 1  | 1008 | JAM | 53.30 PB  | Q  | 0.190  | |
4  | 2  | 3  | 599 | BRN | 53.39 AR  | Q  | 0.195  | |
5  | 2  | 1  | 1383 | USA | 53.63 PB  | Q  | 0.199  | |
6  | 3  | 3  | 1026 | JAM | 53.69   | q  | 0.180  | |
7  | 2  | 2  | 1018 | JAM | 53.72   | Q  | 0.163  | |
8  | 4  | 3  | 987 | ITA | 53.89 NR  | q  | 0.190  | |
9  | 3  | 2  | 1431 | USA | 54.19   | 0.169  | ||
10  | 4  | 2  | 1366 | UKR | 54.42 SB  | 0.186  | ||
11  | 3  | 1  | 790 | FIN | 54.48   | 0.200  | ||
12  | 4  | 1  | 850 | GBR | 54.51   | 0.187  | ||
13  | 5  | 2  | 887 | GER | 54.58   | 0.192  | ||
14  | 5  | 3  | 1145 | NED | 54.63   | 0.248  | ||
15  | 5  | 1  | 1196 | PAN | 54.71   | 0.208  | ||
16  | 6  | 3  | 629 | CAN | 54.99   | 0.214  | ||
17  | 6  | 2  | 690 | CZE | 55.01   | 0.229  | ||
18  | 6  | 1  | 1119 | MAR | 55.15   | 0.184  | ||
19  | 7  | 1  | 1369 | UKR | 55.43   | 0.209  | ||
20  | 7  | 2  | 1182 | NOR | 55.43   | 0.152  | ||
21  | 8  | 2  | 1266 | RSA | 55.49   | 0.212  | ||
22  | 8  | 1  | 1000 | ITA | 55.98   | 0.213  | ||
23  | 7  | 3  | 553 | BEL | 56.06   | 0.208  | ||
24  | 8  | 3  | 874 | GER | 56.71   | 0.166  |