| POS | Rank | Heat | ATHLETE | COUNTRY | RESULTS |
|---|---|---|---|---|---|
| 1 | 1 | 1 | Jeremy Wariner |
USA |
44.67 |
| 2 | 2 | 1 | Jermaine Gonzales |
JAM |
44.80 |
| 3 | 3 | 1 | Ricardo Chambers |
JAM |
45.18 |
| 4 | 4 | 1 | Michael Bingham |
GBR |
45.49 |
| 5 | 5 | 1 | David Gillick |
IRL |
45.79 |
| 6 | 6 | 1 | Martyn ROONEY |
GBR |
45.89 |
| 7 | 7 | 1 | Kévin BORLÉE |
BEL |
46.03 |
| 8 | 1 | 2 | Conrad Williams |
GBR |
46.09 |
| 9 | 2 | 2 | Robert Tobin |
GBR |
46.12 |
| 10 | 3 | 2 | Richard Buck |
GBR |
46.48 |
| 11 | 4 | 2 | Ben Offereins |
AUS |
46.59 |
| 12 | 5 | 2 | Nick Leavey |
GBR |
46.68 |
| 13 | 6 | 2 | Nigel Levine |
GBR |
46.76 |
| 14 | 7 | 2 | Oscar Pistorius |
RSA |
46.93 |
| 15 | 8 | 2 | Graham Hedman |
GBR |
47.10 |
| 16 | 8 | 1 | Jamaal Torrance |
USA |
47.38 |