| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 23 | DQ | ||
| 1 | 14 | 46.31 | ||
| 1 | 16 | 47.01 | ||
| 2 | 17 | 47.67 | ||
| 2 | 8 | 42.45 | ||
| 2 | 9 | 42.80 | ||
| 3 | 15 | 46.44 | ||
| 3 | 5 | 41.30 | ||
| 3 | 1 | 40.39 | ||
| 4 | 21 | 51.02 | ||
| 4 | 4 | 40.99 | ||
| 4 | 20 | 50.69 | ||
| 5 | 13 | 46.06 | ||
| 5 | 6 | 42.24 | ||
| 5 | 10 | 44.53 | ||
| 6 | 7 | 42.28 | ||
| 6 | 11 | 45.60 | ||
| 7 | 19 | 49.29 | ||
| 7 | 12 | 45.69 | ||
| 7 | 2 | 40.56 | ||
| 8 | 3 | 40.58 | ||
| 8 | 18 | 48.75 | ||
| 8 | 22 | 51.11 |