| Ranking | Player | Record | Advance |
|---|---|---|---|
| 1 |
United States
|
45.18 |
Q |
| 2 |
Great Britain
|
45.47 PB |
Q |
| 3 |
China
|
45.52 PB |
Q |
| 4 |
Thailand
|
45.68 |
Q |
| 5 |
Tunisia
|
46.23 |
Q |
| 6 |
China
|
46.34 |
Q |
| 7 |
Thailand
|
47.21 |
q |
| 8 |
Mexico
|
47.30 |
q |
| 9 |
China
|
47.41 |
|
| 10 |
Thailand
|
47.46 |
|
| 11 |
Great Britain
|
48.05 |
|
| 12 |
Australia
|
48.11 PB |
|
| 13 |
|
48.29 |
|
Portugal
|
Disqualified |
||
Eritrea
|
Disqualified |
- PB Personal Best
- Q Qualified by place (track) or standard (field)
- q Qualified by time (track and relays) or performance (field events)
