| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 23 | 51.61 | ||
| 1 | 18 | 49.67 | ||
| 1 | 4 | 40.97 | ||
| 2 | 9 | 46.75 | ||
| 2 | 24 | NS | ||
| 2 | 5 | 41.94 | ||
| 3 | 11 | 48.05 | ||
| 3 | 10 | 47.29 | ||
| 3 | 3 | 40.39 | ||
| 4 | 2 | 40.02 | ||
| 4 | 12 | 48.45 | ||
| 4 | 14 | 48.66 | ||
| 5 | 7 | 42.76 | ||
| 5 | 16 | 49.04 | ||
| 5 | 15 | 48.90 | ||
| 6 | 8 | 43.02 | ||
| 6 | 19 | 50.08 | ||
| 6 | 21 | 51.13 | ||
| 7 | 13 | 48.54 | ||
| 7 | 1 | 39.23 | ||
| 7 | 17 | 49.07 | ||
| 8 | 20 | 50.88 | ||
| 8 | 6 | 42.20 | ||
| 8 | 22 | 51.22 |