| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 11 | 44.62 | ||
| 1 | 20 | 51.37 | ||
| 1 | 9 | 42.98 | ||
| 2 | 14 | 48.21 | ||
| 2 | 3 | 40.20 | ||
| 2 | 22 | 54.66 | ||
| 3 | 21 | 53.29 | ||
| 3 | 12 | 45.17 | ||
| 3 | 23 | DQ | ||
| 4 | 10 | 44.07 | ||
| 4 | 7 | 42.49 | ||
| 4 | 15 | 48.42 | ||
| 5 | 5 | 41.63 | ||
| 5 | 6 | 41.81 | ||
| 5 | 17 | 49.06 | ||
| 6 | 8 | 42.93 | ||
| 6 | 18 | 49.13 | ||
| 6 | 4 | 41.33 | ||
| 7 | 1 | 35.96 | ||
| 7 | 23 | DQ | ||
| 7 | 13 | 47.38 | ||
| 8 | 16 | 48.84 | ||
| 8 | 2 | 39.28 | ||
| 8 | 19 | 50.43 |