| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 21 | 56.40 | ||
| 1 | 4 | 43.41 | ||
| 1 | 18 | 53.77 | ||
| 2 | 3 | 42.33 | ||
| 2 | 19 | 55.26 | ||
| 2 | 8 | 47.22 | ||
| 3 | 17 | 52.70 | ||
| 3 | 6 | 44.01 | ||
| 3 | 9 | 47.49 | ||
| 4 | 10 | 48.79 | ||
| 4 | 12 | 49.76 | ||
| 4 | 5 | 43.69 | ||
| 5 | 1 | 41.31 | ||
| 5 | 13 | 50.00 | ||
| 5 | 11 | 49.70 | ||
| 6 | 2 | 41.82 | ||
| 6 | 15 | 50.47 | ||
| 6 | 23 | DQ | ||
| 7 | 20 | 56.00 | ||
| 7 | 14 | 50.38 | ||
| 7 | 23 | DQ | ||
| 8 | 22 | 59.36 | ||
| 8 | 7 | 45.91 | ||
| 8 | 16 | 51.55 |