Pos | Bib | Country | Athlete | Mark | Details | Reaction Time |
|---|---|---|---|---|---|---|
1 | 2977 | TTO | 44.98 | Q | 0.179 | |
2 | 3093 | USA | 45.27 | Q | 0.168 | |
3 | 2275 | CUB | 45.36 SB | Q | 0.199 | |
4 | 2617 | JAM | 45.66 | 0.176 | ||
5 | 2089 | BEL | 45.90 | 0.138 | ||
6 | 3115 | VEN | 46.15 | 0.205 | ||
7 | 2697 | KEN | 46.62 | 0.199 | ||
8 | 2801 | NIG | 50.06 | 0.173 |