| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 15 | 49.70 | ||
| 1 | 9 | 46.57 | ||
| 1 | 22 | DQ | ||
| 2 | 21 | 1:01.73 | ||
| 2 | 10 | 47.31 | ||
| 2 | 13 | 49.27 | ||
| 3 | 8 | 46.53 | ||
| 3 | 19 | 52.33 | ||
| 3 | 6 | 45.14 | ||
| 4 | 22 | NS | ||
| 4 | 1 | 39.55 | ||
| 4 | 3 | 44.57 | ||
| 5 | 7 | 45.32 | ||
| 5 | 2 | 40.28 | ||
| 5 | 20 | 53.41 | ||
| 6 | 22 | NS | ||
| 6 | 4 | 44.68 | ||
| 6 | 14 | 49.36 | ||
| 7 | 11 | 48.18 | ||
| 7 | 17 | 50.96 | ||
| 7 | 18 | 51.03 | ||
| 8 | 12 | 48.32 | ||
| 8 | 16 | 50.41 | ||
| 8 | 5 | 45.01 |