| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 22 | 50.00 | ||
| 1 | 9 | 44.83 | ||
| 1 | 15 | 47.85 | ||
| 2 | 18 | 48.99 | ||
| 2 | 5 | 41.69 | ||
| 2 | 23 | 51.11 | ||
| 3 | 4 | 41.59 | ||
| 3 | 20 | 49.06 | ||
| 3 | 17 | 48.95 | ||
| 4 | 2 | 39.11 | ||
| 4 | 8 | 42.23 | ||
| 4 | 10 | 45.39 | ||
| 5 | 12 | 46.21 | ||
| 5 | 13 | 46.68 | ||
| 5 | 3 | 40.98 | ||
| 6 | 19 | 49.01 | ||
| 6 | 11 | 45.97 | ||
| 6 | 1 | 38.46 | ||
| 7 | 6 | 41.82 | ||
| 7 | 16 | 48.39 | ||
| 7 | 21 | 49.72 | ||
| 8 | 14 | 47.24 | ||
| 8 | 7 | 42.03 | ||
| 8 | 24 | DQ |