Pos | Bib | Athlete | Mark | Details | Reaction Time | |
|---|---|---|---|---|---|---|
1 | 1141 | POL | 45.13 PB | Q | 0.191 | |
2 | 1454 | USA | 45.25 | Q | 0.136 | |
3 | 533 | GBR | 45.26 | Q | 0.188 | |
4 | 1293 | SLO | 45.47 NR | Q | 0.123 | |
5 | 1075 | NGR | 45.95 | q | 0.136 | |
6 | 833 | JPN | 46.42 SB | 0.163 | ||
7 | 1200 | RSA | 46.44 | 0.144 | ||
8 | 345 | DOM | 46.80 | 0.218 |