| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 9 | 46.98 | ||
| 1 | 11 | 47.70 | ||
| 1 | 20 | 58.00 | ||
| 2 | 4 | 43.73 | ||
| 2 | 7 | 45.91 | ||
| 2 | 21 | 1:03.20 | ||
| 3 | 6 | 44.39 | ||
| 3 | 13 | 51.03 | ||
| 3 | 15 | 52.55 | ||
| 4 | 18 | 53.41 | ||
| 4 | 2 | 40.84 | ||
| 4 | 22 | 1:04.45 | ||
| 5 | 10 | 47.56 | ||
| 5 | 8 | 46.70 | ||
| 5 | 3 | 41.83 | ||
| 6 | 1 | 38.05 | ||
| 6 | 5 | 44.05 | ||
| 6 | 19 | 57.71 | ||
| 7 | 17 | 52.64 | ||
| 7 | 14 | 51.25 | ||
| 7 | 23 | DQ | ||
| 8 | 12 | 50.81 | ||
| 8 | 23 | DQ | ||
| 8 | 16 | 52.59 |