| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 9 | 47.13 | ||
| 1 | 21 | DQ | ||
| 1 | 17 | 55.76 | ||
| 2 | 16 | 55.29 | ||
| 2 | 10 | 48.01 | ||
| 2 | 1 | 41.24 | ||
| 3 | 12 | 50.22 | ||
| 3 | 4 | 42.88 | ||
| 3 | 21 | DQ | ||
| 4 | 20 | 1:02.82 | ||
| 4 | 2 | 41.55 | ||
| 4 | 6 | 44.71 | ||
| 5 | 11 | 48.95 | ||
| 5 | 3 | 41.81 | ||
| 5 | 15 | 51.18 | ||
| 6 | 18 | 57.53 | ||
| 6 | 14 | 50.78 | ||
| 6 | 8 | 46.82 | ||
| 7 | 21 | DQ | ||
| 7 | 7 | 45.90 | ||
| 7 | 19 | 59.81 | ||
| 8 | 21 | DQ | ||
| 8 | 5 | 44.23 | ||
| 8 | 13 | 50.26 |