Pos | Rank | Heat | Bib | Athlete | Mark | Details | Reaction Time | |
|---|---|---|---|---|---|---|---|---|
1 | 1 | 1 | 50 | CAN | 46.57 | Q | 0.253 | |
2 | 1 | 2 | 17 | BAH | 46.68 | Q | 0.254 | |
3 | 2 | 2 | 64 | CRC | 46.85 | Q | 0.298 | |
4 | 2 | 1 | 319 | SWE | 46.86 | Q | 0.242 | |
5 | 3 | 2 | 279 | RUS | 46.92 | Q | 0.257 | |
6 | 4 | 2 | 79 | DMA | 46.92 | 0.189 | ||
7 | 3 | 1 | 9 | AUS | 47.13 PB | Q | 0.257 | |
8 | 4 | 1 | 275 | RUS | 47.18 | 0.292 | ||
9 | 5 | 2 | 122 | GBR | 47.60 | 0.232 | ||
10 | 5 | 1 | 34 | BOT | 47.74 | 0.342 | ||
11 | 6 | 1 | 354 | USA | 48.18 | 0.294 | ||
12 | 6 | 2 | 182 | JAM | 48.41 | 0.242 |