Pos | Bib | Country | Athlete | Mark | Details | Reaction Time |
|---|---|---|---|---|---|---|
1 | 3059 | USA | 48.26 SB | Q | 0.141 | |
2 | 2699 | KEN | 48.85 SB | Q | 0.181 | |
3 | 2357 | ESP | 48.87 NR | 0.150 | ||
4 | 2008 | ALG | 49.08 | 0.200 | ||
5 | 2621 | JAM | 49.17 | 0.131 | ||
6 | 2652 | JPN | 49.20 | 0.158 | ||
7 | 2826 | PHI | 49.37 | 0.139 | ||
8 | 2457 | GBR | 49.54 | 0.185 |