| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 21 | DQ | ||
| 1 | 11 | 51.16 | ||
| 2 | 12 | 54.23 | ||
| 2 | 8 | 46.41 | ||
| 3 | 10 | 48.32 | ||
| 3 | 5 | 42.06 | ||
| 3 | 19 | 1:33.60 | ||
| 4 | 3 | 40.75 | ||
| 4 | 2 | 37.57 | ||
| 4 | 7 | 42.63 | ||
| 4 | 17 | 59.57 | ||
| 5 | 13 | 54.47 | ||
| 5 | 4 | 41.61 | ||
| 5 | 6 | 42.23 | ||
| 5 | 21 | DQ | ||
| 6 | 20 | 1:39.04 | ||
| 6 | 15 | 55.63 | ||
| 6 | 9 | 48.10 | ||
| 7 | 16 | 56.71 | ||
| 7 | 1 | 33.73 | ||
| 8 | 14 | 54.99 | ||
| 8 | 18 | 59.74 |