| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 18 | 50.53 | ||
| 1 | 2 | 40.08 | ||
| 1 | 20 | 53.99 | ||
| 2 | 21 | DQ | ||
| 2 | 21 | NS | ||
| 2 | 11 | 45.78 | ||
| 3 | 1 | 39.16 | ||
| 3 | 15 | 48.96 | ||
| 3 | 14 | 48.28 | ||
| 4 | 7 | 43.82 | ||
| 4 | 12 | 46.55 | ||
| 4 | 9 | 45.41 | ||
| 5 | 21 | DQ | ||
| 5 | 3 | 40.80 | ||
| 5 | 8 | 44.36 | ||
| 6 | 21 | DQ | ||
| 6 | 19 | 52.95 | ||
| 6 | 6 | 42.43 | ||
| 7 | 5 | 42.37 | ||
| 7 | 13 | 46.80 | ||
| 7 | 10 | 45.59 | ||
| 8 | 4 | 42.18 | ||
| 8 | 17 | 50.06 | ||
| 8 | 16 | 49.42 |