| POS | Rank | Heat | BIB | ATHLETE | COUNTRY | RESULTS | ms* |
|---|---|---|---|---|---|---|---|
| 1 | 1 | 2 | AUS | Australia |
AUS |
42.88 WQ SB | |
| 2 | 2 | 2 | GBR | Great Britain & NI |
GBR |
42.90 WQ SB | |
| 3 | 1 | 1 | FRA | France |
FRA |
42.92 WQ SB | .911 |
| 4 | 3 | 2 | SUI | Switzerland |
SUI |
42.92 SB | .914 |
| 5 | 2 | 1 | NGR | Nigeria |
NGR |
42.94 WQ SB | |
| 6 | 3 | 1 | HUN | Hungary |
HUN |
43.32 NR | |
| 7 | 4 | 1 | RSA | South Africa |
RSA |
43.56 | |
| 8 | 5 | 1 | BEL | Belgium |
BEL |
43.59 SB | |
| 9 | 4 | 2 | IRL | Ireland |
IRL |
44.25 SB | |
| 10 | 5 | 2 | CHI | Chile |
CHI |
44.31 SB | |
| 11 | 6 | 2 | NED | Netherlands |
NED |
44.41 | |
| 12 | 7 | 2 | BOT | Botswana |
BOT |
44.93 SB | |
| 13 | 6 | 1 | IND | India |
IND |
53.90 |
ms - Milliseconds - shown when two or more competitors finish with the same time down to hundredths of a second