Pos | Bib | Athlete | Mark | Details | Reaction Time | |
|---|---|---|---|---|---|---|
1 | 1655 | USA | 51.90 SB | Q | 0.199 | |
2 | 1141 | CUB | 52.26 PB | Q | 0.186 | |
3 | 1622 | UKR | 52.79 PB | q | 0.207 | |
4 | 1264 | GBR | 52.80 PB | 0.173 | ||
5 | 1080 | CAN | 53.27 PB | 0.166 | ||
6 | 1346 | ITA | 53.93 | 0.161 | ||
7 | 1278 | GER | 54.13 | 0.164 | ||
8 | 1431 | KOS | 55.95 | 0.207 |