Pos | Bib | Athlete | Mark | Details | Reaction Time | |
|---|---|---|---|---|---|---|
1 | 901 | POL | 52.43 | Q | 0.213 | |
2 | 1079 | USA | 52.81 | Q | 0.273 | |
3 | 357 | BAR | 53.25 | Q | 0.174 | |
4 | 953 | RSA | 53.37 | 0.227 | ||
5 | 759 | JAM | 53.77 | 0.169 | ||
6 | 622 | GER | 53.96 | 0.243 | ||
7 | 499 | ECU | 54.00 | 0.195 | ||
8 | 856 | NGR | 54.68 | 0.216 | ||
9 | 832 | MEX | 54.97 | 0.270 |