Pos | Bib | Country | Athlete | Mark | Details | Reaction Time |
|---|---|---|---|---|---|---|
1 | 1563 | DOM | 47.76 SB | Q | 0.175 | |
2 | 3043 | TTO | 47.96 NR | Q | 0.148 | |
3 | 3212 | USA | 48.12 SB | q | 0.251 | |
4 | 1812 | GBR | 48.19 | q | 0.181 | |
5 | 2910 | SEN | 48.80 PB | 0.172 | ||
6 | 1135 | BEL | 49.10 PB | 0.147 | ||
7 | 2741 | PUR | 49.15 PB | 0.186 | ||
8 | 2528 | MOZ | 51.55 | 0.179 |