| POS | Rank | Heat | ATHLETE | COUNTRY | RESULTS |
|---|---|---|---|---|---|
| 1 | 1 | 2 | LaShawn Merritt |
USA |
44.50 |
| 2 | 2 | 2 | Steven GARDINER |
BAH |
44.75 |
| 3 | 3 | 2 | Liemarvin BONEVACIA |
NED |
45.26 |
| 4 | 4 | 2 | Pavel MASLÁK |
CZE |
45.35 |
| 5 | 5 | 2 | Martyn ROONEY |
GBR |
45.46 |
| 6 | 6 | 2 | Isaac MAKWALA |
BOT |
45.62 |
| 7 | 7 | 2 | Mame-Ibra ANNE |
FRA |
45.69 |
| 8 | 1 | 1 | Brian GREGAN |
IRL |
46.56 |
| 9 | 2 | 1 | Silvan Lutz |
SUI |
47.18 |
| 10 | 8 | 2 | Joel Burgunder |
SUI |
47.35 |
| 11 | 3 | 1 | Daniele Angelella |
SUI |
47.80 |
| 12 | 4 | 1 | Dany BRAND |
SUI |
48.12 |
| 13 | 5 | 1 | Matthias Barth |
SUI |
48.42 |
| 14 | 6 | 1 | Charles DEVANTAY |
SUI |
48.49 |
| 15 | 7 | 1 | Jérôme Bellon |
SUI |
48.69 |
| 16 | 8 | 1 | Claudio Wäspi |
SUI |
49.16 |