| POS | Rank | Heat | BIB | ATHLETE | COUNTRY | RESULTS |
|---|---|---|---|---|---|---|
| 1 | 1 | 1 | 191 | Alleyne Francique |
GRN |
45.86 Q |
| 2 | 2 | 1 | 36 | California Molefe |
BOT |
46.02 Q |
| 3 | 1 | 2 | 20 | Chris Brown |
BAH |
46.10 Q |
| 4 | 3 | 1 | 482 | Milton Campbell |
USA |
46.22 Q |
| 5 | 2 | 2 | 232 | Davian Clarke |
JAM |
46.23 Q SB |
| 6 | 3 | 2 | 371 | Dmitriy Petrov |
RUS |
46.44 Q |
| 7 | 4 | 1 | 319 | Daniel Dabrowski |
POL |
46.61 |
| 8 | 5 | 1 | 173 | Ruwen Faller |
GER |
46.67 |
| 9 | 4 | 2 | 322 | Marcin Marciniszyn |
POL |
46.97 |
| 10 | 5 | 2 | 100 | Carlos Santa |
DOM |
47.11 |
| 11 | 6 | 2 | 211 | David McCarthy |
IRL |
47.11 |
| 12 | 6 | 1 | 362 | Vladislav Frolov |
RUS |
47.11 |