Pos | Bib | Country | Athlete | Mark | Details | Reaction Time |
---|---|---|---|---|---|---|
1 | 1491 | NOR | 49.27 | Q | 0.161 | |
2 | 1066 | IRL | 49.41 | Q | 0.184 | |
3 | 1045 | IND | 49.62 | Q | 0.186 | |
4 | 1170 | JAM | 49.63 | Q | 0.182 | |
5 | 1910 | USA | 49.72 | q | 0.223 | |
6 | 1400 | MEX | 49.95 | q | 0.209 | |
7 | 1064 | IRI | 50.46 | 0.184 | ||
8 | 337 | BRA | 51.52 SB | 0.217 |