| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 17 | 51.70 | ||
| 1 | 19 | 54.00 | ||
| 1 | 21 | 56.30 | ||
| 2 | 8 | 45.82 | ||
| 2 | 16 | 51.65 | ||
| 2 | 13 | 49.82 | ||
| 3 | 2 | 38.25 | ||
| 3 | 20 | 55.77 | ||
| 3 | 18 | 51.86 | ||
| 4 | 12 | 47.37 | ||
| 4 | 9 | 46.14 | ||
| 4 | 1 | 37.88 | ||
| 5 | 10 | 46.78 | ||
| 5 | 6 | 44.49 | ||
| 5 | 3 | 41.13 | ||
| 6 | 4 | 42.03 | ||
| 6 | 7 | 45.43 | ||
| 6 | 11 | 46.96 | ||
| 7 | 14 | 51.47 | ||
| 7 | 22 | DQ | ||
| 7 | 5 | 44.21 | ||
| 8 | 15 | 51.53 | ||
| 8 | 22 | NS |