| Ranking | Player | Start Time | Record | Advance |
|---|---|---|---|---|
| 1 |
Poland
|
0.183 |
49.45 |
Q |
| 2 |
Great Britain
|
0.227 |
49.47 PB |
Q |
| 3 |
Barbados
|
0.187 |
49.89 |
q |
| 4 |
United States
|
0.215 |
50.40 |
|
| 5 |
Cuba
|
0.209 |
50.48 |
|
| 6 |
Mexico
|
0.183 |
50.73 |
|
| 7 |
Jamaica
|
0.153 |
50.79 |
|
| 8 |
South Africa
|
0.217 |
51.60 |
- PB Personal Best
- Q Qualified by place (track) or standard (field)
- q Qualified by time (track and relays) or performance (field events)
| Photo Finish |
|---|
