| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 8 | 46.11 | ||
| 1 | 15 | 53.21 | ||
| 1 | 10 | 46.92 | ||
| 2 | 17 | 55.68 | ||
| 2 | 3 | 43.10 | ||
| 3 | 4 | 44.01 | ||
| 3 | 9 | 46.90 | ||
| 3 | 19 | 57.20 | ||
| 4 | 21 | NS | ||
| 4 | 2 | 42.26 | ||
| 4 | 1 | 42.11 | ||
| 5 | 7 | 45.88 | ||
| 5 | 20 | 58.03 | ||
| 5 | 11 | 47.09 | ||
| 6 | 16 | 54.52 | ||
| 6 | 6 | 45.75 | ||
| 6 | 14 | 52.63 | ||
| 7 | 5 | 45.37 | ||
| 7 | 21 | DQ | ||
| 7 | 13 | 48.60 | ||
| 8 | 21 | NS | ||
| 8 | 12 | 48.53 | ||
| 8 | 18 | 57.06 |