Pos | Bib | Athlete | Mark | Details | Reaction Time | |
|---|---|---|---|---|---|---|
1 | 2424 | USA | 49.48 | Q | 0.149 | |
2 | 2035 | JAM | 49.98 PB | Q | 0.180 | |
3 | 1718 | CZE | 50.22 | Q | 0.189 | |
4 | 1687 | COL | 50.54 PB | 0.165 | ||
5 | 1995 | ITA | 50.64 PB | 0.171 | ||
6 | 1750 | ESP | 50.95 | 0.153 | ||
7 | 1970 | IRL | 51.28 PB | 0.200 | ||
8 | 1655 | CAN | 51.44 | 0.153 | ||
9 | 2134 | MEX | 52.31 | 0.139 |