| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 17 | 52.56 | ||
| 1 | 23 | NS | ||
| 1 | 20 | 55.20 | ||
| 2 | 9 | 48.47 | ||
| 2 | 2 | 41.98 | ||
| 2 | 15 | 52.22 | ||
| 3 | 12 | 49.98 | ||
| 3 | 8 | 48.27 | ||
| 3 | 4 | 44.94 | ||
| 4 | 23 | DQ | ||
| 4 | 11 | 49.36 | ||
| 4 | 10 | 49.10 | ||
| 5 | 21 | 56.56 | ||
| 5 | 7 | 48.21 | ||
| 5 | 5 | 46.18 | ||
| 6 | 18 | 53.45 | ||
| 6 | 14 | 51.59 | ||
| 6 | 3 | 43.90 | ||
| 7 | 16 | 52.30 | ||
| 7 | 19 | 53.69 | ||
| 7 | 1 | 40.43 | ||
| 8 | 6 | 46.45 | ||
| 8 | 13 | 50.07 | ||
| 8 | 22 | 1:00.01 |