| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 19 | 48.97 | ||
| 2 | 18 | 48.81 | ||
| 2 | 15 | 45.51 | ||
| 3 | 22 | DQ | ||
| 3 | 4 | 32.37 | ||
| 3 | 12 | 44.42 | ||
| 3 | 6 | 33.96 | ||
| 3 | 3 | 31.38 | ||
| 4 | 1 | 30.34 | ||
| 4 | 13 | 44.63 | ||
| 4 | 20 | 50.18 | ||
| 4 | 2 | 31.24 | ||
| 4 | 7 | 33.99 | ||
| 5 | 22 | NS | ||
| 5 | 22 | NS | ||
| 5 | 16 | 45.90 | ||
| 5 | 8 | 35.11 | ||
| 5 | 10 | 41.19 | ||
| 6 | 14 | 45.27 | ||
| 6 | 11 | 42.86 | ||
| 6 | 5 | 33.12 | ||
| 7 | 21 | 57.59 | ||
| 7 | 9 | 36.79 | ||
| 8 | 17 | 46.22 |