| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 8 | 50.22 | ||
| 1 | 21 | DQ | ||
| 1 | 16 | 54.02 | ||
| 2 | 7 | 49.97 | ||
| 2 | 12 | 52.79 | ||
| 2 | 15 | 53.74 | ||
| 3 | 19 | 1:05.89 | ||
| 3 | 3 | 47.95 | ||
| 3 | 11 | 52.23 | ||
| 4 | 4 | 48.29 | ||
| 4 | 14 | 53.45 | ||
| 4 | 2 | 45.90 | ||
| 4 | 1 | 35.65 | ||
| 5 | 18 | 1:04.65 | ||
| 5 | 6 | 49.50 | ||
| 5 | 13 | 53.09 | ||
| 6 | 5 | 49.21 | ||
| 6 | 21 | NS | ||
| 6 | 21 | DQ | ||
| 7 | 10 | 52.13 | ||
| 7 | 17 | 55.25 | ||
| 7 | 20 | 1:10.06 | ||
| 8 | 9 | 51.88 |