| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 20 | 52.93 | ||
| 1 | 12 | 49.37 | ||
| 1 | 23 | 1:00.90 | ||
| 2 | 11 | 48.56 | ||
| 2 | 13 | 50.29 | ||
| 2 | 21 | 53.50 | ||
| 3 | 19 | 52.80 | ||
| 3 | 9 | 47.26 | ||
| 3 | 7 | 46.36 | ||
| 4 | 5 | 46.11 | ||
| 4 | 4 | 46.05 | ||
| 4 | 10 | 47.72 | ||
| 5 | 8 | 46.96 | ||
| 5 | 14 | 51.00 | ||
| 5 | 2 | 45.82 | ||
| 6 | 17 | 52.23 | ||
| 6 | 1 | 44.98 | ||
| 6 | 18 | 52.71 | ||
| 7 | 6 | 46.33 | ||
| 7 | 22 | 53.84 | ||
| 7 | 15 | 51.61 | ||
| 8 | 16 | 52.10 | ||
| 8 | 24 | DQ | ||
| 8 | 3 | 45.99 |