| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 7 | 45.22 | ||
| 1 | 20 | 56.49 | ||
| 1 | 16 | 50.66 | ||
| 2 | 14 | 49.39 | ||
| 2 | 23 | DQ | ||
| 2 | 15 | 49.76 | ||
| 3 | 9 | 46.73 | ||
| 3 | 13 | 48.90 | ||
| 3 | 3 | 42.98 | ||
| 4 | 12 | 48.87 | ||
| 4 | 5 | 43.50 | ||
| 4 | 1 | 39.14 | ||
| 5 | 10 | 47.16 | ||
| 5 | 2 | 41.35 | ||
| 5 | 11 | 47.31 | ||
| 6 | 18 | 52.76 | ||
| 6 | 8 | 46.01 | ||
| 6 | 21 | 56.55 | ||
| 7 | 23 | NS | ||
| 7 | 19 | 53.44 | ||
| 7 | 4 | 43.37 | ||
| 8 | 6 | 44.22 | ||
| 8 | 17 | 51.51 | ||
| 8 | 22 | 57.65 |