| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 2 | 27 | DQ | ||
| 2 | 13 | 45.69 | ||
| 2 | 19 | 49.34 | ||
| 2 | 22 | 51.00 | ||
| 2 | 10 | 45.39 | ||
| 3 | 23 | 52.93 | ||
| 3 | 18 | 49.11 | ||
| 3 | 12 | 45.54 | ||
| 3 | 15 | 46.48 | ||
| 3 | 21 | 50.03 | ||
| 4 | 2 | 42.37 | ||
| 4 | 20 | 49.96 | ||
| 4 | 9 | 45.32 | ||
| 4 | 1 | 39.76 | ||
| 4 | 6 | 44.07 | ||
| 5 | 26 | 57.10 | ||
| 5 | 16 | 47.71 | ||
| 5 | 7 | 44.29 | ||
| 5 | 11 | 45.53 | ||
| 5 | 24 | 53.49 | ||
| 6 | 27 | DQ | ||
| 6 | 8 | 44.34 | ||
| 6 | 27 | DQ | ||
| 6 | 17 | 47.83 | ||
| 6 | 4 | 43.40 | ||
| 7 | 5 | 43.53 | ||
| 7 | 3 | 42.98 | ||
| 7 | 25 | 55.60 | ||
| 7 | 14 | 46.10 |