| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 2 | 48.07 | ||
| 1 | 5 | 48.96 | ||
| 1 | 21 | 1:01.15 | ||
| 2 | 12 | 52.51 | ||
| 2 | 11 | 51.50 | ||
| 2 | 15 | 54.15 | ||
| 3 | 18 | 56.73 | ||
| 3 | 3 | 48.30 | ||
| 3 | 10 | 51.46 | ||
| 4 | 6 | 49.56 | ||
| 4 | 22 | NS | ||
| 4 | 19 | 58.45 | ||
| 5 | 1 | 46.93 | ||
| 5 | 17 | 56.12 | ||
| 5 | 22 | DQ | ||
| 6 | 4 | 48.75 | ||
| 6 | 7 | 50.70 | ||
| 6 | 14 | 53.53 | ||
| 7 | 8 | 51.02 | ||
| 7 | 16 | 55.15 | ||
| 7 | 22 | NS | ||
| 8 | 9 | 51.25 | ||
| 8 | 20 | 1:01.12 | ||
| 8 | 13 | 52.95 |