| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 19 | 55.87 | ||
| 1 | 6 | 48.05 | ||
| 1 | 20 | 57.53 | ||
| 1 | 1 | 43.41 | ||
| 2 | 12 | 50.47 | ||
| 2 | 15 | 53.55 | ||
| 2 | 4 | 46.55 | ||
| 2 | 16 | 53.56 | ||
| 3 | 11 | 50.13 | ||
| 3 | 2 | 45.83 | ||
| 3 | 5 | 47.86 | ||
| 3 | 3 | 46.14 | ||
| 4 | 18 | 55.66 | ||
| 4 | 21 | DQ | ||
| 4 | 6 | 48.05 | ||
| 4 | 21 | DQ | ||
| 5 | 7 | 48.10 | ||
| 5 | 14 | 53.10 | ||
| 5 | 8 | 48.26 | ||
| 5 | 13 | 52.43 | ||
| 6 | 10 | 48.54 | ||
| 6 | 21 | NS | ||
| 6 | 17 | 54.02 | ||
| 6 | 9 | 48.43 |