| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 2 | 46.99 | ||
| 1 | 12 | 53.78 | ||
| 1 | 9 | 52.30 | ||
| 2 | 17 | 1:08.77 | ||
| 2 | 11 | 53.14 | ||
| 2 | 18 | NS | ||
| 3 | 3 | 48.03 | ||
| 3 | 8 | 52.08 | ||
| 3 | 18 | NS | ||
| 4 | 16 | 57.64 | ||
| 4 | 18 | DQ | ||
| 4 | 18 | NS | ||
| 5 | 4 | 48.71 | ||
| 5 | 6 | 50.21 | ||
| 5 | 18 | NS | ||
| 6 | 18 | NS | ||
| 6 | 15 | 57.27 | ||
| 6 | 5 | 48.82 | ||
| 7 | 14 | 55.67 | ||
| 7 | 7 | 51.01 | ||
| 7 | 1 | 46.42 | ||
| 8 | 10 | 52.38 | ||
| 8 | 18 | DQ | ||
| 8 | 13 | 53.83 |