Pos | Bib | Country | Athlete | Mark | Details | Reaction Time |
|---|---|---|---|---|---|---|
1 | 1615 | BRN | 49.08 SB | Q | 0.167 | |
2 | 1985 | IRL | 49.95 | Q | 0.159 | |
3 | 2217 | NOR | 50.17 | q | 0.129 | |
4 | 2175 | NED | 50.44 | 0.151 | ||
5 | 1887 | GBR | 51.14 | 0.189 | ||
6 | 2422 | USA | 51.18 | 0.160 | ||
7 | 2292 | PUR | 51.22 | 0.164 | ||
8 | 2046 | JAM | 51.93 | 0.187 |