| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 9 | 51.68 | ||
| 1 | 21 | DQ | ||
| 1 | 16 | 54.24 | ||
| 2 | 17 | 58.36 | ||
| 2 | 21 | DQ | ||
| 2 | 10 | 52.10 | ||
| 3 | 12 | 53.03 | ||
| 3 | 18 | 1:03.78 | ||
| 3 | 4 | 48.67 | ||
| 4 | 6 | 49.89 | ||
| 4 | 3 | 48.60 | ||
| 4 | 13 | 53.41 | ||
| 5 | 20 | 1:05.02 | ||
| 5 | 8 | 50.59 | ||
| 5 | 7 | 50.26 | ||
| 6 | 19 | 1:04.67 | ||
| 6 | 1 | 47.11 | ||
| 6 | 2 | 48.39 | ||
| 7 | 5 | 48.85 | ||
| 7 | 15 | 54.10 | ||
| 7 | 21 | NS | ||
| 8 | 21 | NS | ||
| 8 | 11 | 52.69 | ||
| 8 | 14 | 53.49 |