| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 3 | 44.24 | ||
| 1 | 18 | 51.45 | ||
| 2 | 22 | 54.48 | ||
| 2 | 25 | DQ | ||
| 2 | 6 | 44.75 | ||
| 3 | 11 | 46.90 | ||
| 3 | 9 | 46.49 | ||
| 3 | 24 | 1:01.31 | ||
| 4 | 5 | 44.50 | ||
| 4 | 12 | 47.04 | ||
| 4 | 2 | 38.90 | ||
| 5 | 17 | 49.49 | ||
| 5 | 13 | 48.20 | ||
| 5 | 10 | 46.86 | ||
| 6 | 16 | 49.33 | ||
| 6 | 25 | NS | ||
| 6 | 14 | 48.98 | ||
| 7 | 8 | 46.06 | ||
| 7 | 21 | 53.45 | ||
| 7 | 15 | 49.22 | ||
| 8 | 20 | 52.50 | ||
| 8 | 25 | DQ | ||
| 8 | 7 | 46.04 | ||
| 9 | 25 | DQ | ||
| 9 | 19 | 51.89 | ||
| 9 | 1 | 37.87 | ||
| 10 | 4 | 44.35 | ||
| 10 | 23 | 57.37 |