| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 21 | 55.76 | ||
| 1 | 4 | 46.03 | ||
| 1 | 17 | 51.76 | ||
| 2 | 15 | 51.38 | ||
| 2 | 18 | 51.86 | ||
| 2 | 7 | 46.81 | ||
| 3 | 14 | 51.16 | ||
| 3 | 6 | 46.76 | ||
| 3 | 11 | 49.08 | ||
| 4 | 1 | 44.91 | ||
| 4 | 13 | 50.52 | ||
| 4 | 9 | 47.42 | ||
| 5 | 3 | 45.63 | ||
| 5 | 23 | NS | ||
| 5 | 10 | 47.62 | ||
| 6 | 12 | 49.41 | ||
| 6 | 23 | DQ | ||
| 6 | 2 | 44.92 | ||
| 7 | 20 | 53.79 | ||
| 7 | 16 | 51.61 | ||
| 7 | 5 | 46.25 | ||
| 8 | 8 | 46.89 | ||
| 8 | 19 | 53.23 | ||
| 8 | 22 | 56.50 |