| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 19 | 53.31 | ||
| 1 | 18 | 52.53 | ||
| 1 | 14 | 48.19 | ||
| 2 | 10 | 45.56 | ||
| 2 | 22 | DQ | ||
| 2 | 11 | 45.90 | ||
| 3 | 7 | 44.62 | ||
| 3 | 9 | 44.98 | ||
| 3 | 8 | 44.89 | ||
| 4 | 3 | 40.20 | ||
| 4 | 1 | 29.07 | ||
| 4 | 6 | 44.43 | ||
| 5 | 5 | 43.72 | ||
| 5 | 2 | 39.49 | ||
| 5 | 20 | 54.32 | ||
| 6 | 15 | 48.25 | ||
| 6 | 4 | 43.42 | ||
| 6 | 22 | NS | ||
| 7 | 12 | 47.13 | ||
| 7 | 13 | 47.21 | ||
| 7 | 16 | 49.29 | ||
| 8 | 21 | 57.73 | ||
| 8 | 17 | 49.49 |