| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 10 | 50.37 | ||
| 1 | 21 | 59.99 | ||
| 1 | 14 | 52.23 | ||
| 2 | 17 | 55.05 | ||
| 2 | 12 | 51.79 | ||
| 2 | 22 | DQ | ||
| 3 | 2 | 44.47 | ||
| 3 | 9 | 48.88 | ||
| 3 | 13 | 52.21 | ||
| 4 | 3 | 44.82 | ||
| 4 | 6 | 48.30 | ||
| 4 | 4 | 45.14 | ||
| 5 | 8 | 48.71 | ||
| 5 | 22 | NS | ||
| 5 | 1 | 44.45 | ||
| 6 | 11 | 50.51 | ||
| 6 | 7 | 48.57 | ||
| 6 | 15 | 52.34 | ||
| 7 | 5 | 48.23 | ||
| 7 | 20 | 58.74 | ||
| 7 | 18 | 55.17 | ||
| 8 | 19 | 58.57 | ||
| 8 | 16 | 52.93 |