| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 7 | 45.97 | ||
| 1 | 15 | 50.26 | ||
| 1 | 21 | 56.16 | ||
| 2 | 19 | 52.74 | ||
| 2 | 10 | 46.74 | ||
| 3 | 8 | 46.46 | ||
| 3 | 20 | 53.48 | ||
| 3 | 9 | 46.61 | ||
| 4 | 1 | 42.55 | ||
| 4 | 6 | 45.43 | ||
| 4 | 3 | 44.24 | ||
| 5 | 13 | 48.39 | ||
| 5 | 2 | 44.09 | ||
| 5 | 11 | 47.73 | ||
| 6 | 18 | 52.21 | ||
| 6 | 12 | 48.37 | ||
| 6 | 23 | DQ | ||
| 7 | 22 | 57.39 | ||
| 7 | 4 | 44.33 | ||
| 7 | 5 | 45.19 | ||
| 8 | 16 | 50.77 | ||
| 8 | 17 | 51.99 | ||
| 8 | 14 | 49.48 |