| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 21 | DQ | ||
| 1 | 13 | 50.19 | ||
| 1 | 20 | 57.29 | ||
| 2 | 18 | 54.32 | ||
| 2 | 5 | 39.24 | ||
| 2 | 10 | 48.91 | ||
| 3 | 15 | 50.46 | ||
| 3 | 3 | 38.55 | ||
| 3 | 9 | 46.90 | ||
| 4 | 21 | NS | ||
| 4 | 17 | 53.14 | ||
| 4 | 2 | 37.78 | ||
| 5 | 7 | 45.41 | ||
| 5 | 14 | 50.33 | ||
| 5 | 6 | 39.31 | ||
| 6 | 12 | 50.02 | ||
| 6 | 21 | DQ | ||
| 6 | 4 | 38.99 | ||
| 7 | 19 | 55.44 | ||
| 7 | 21 | NS | ||
| 7 | 11 | 49.04 | ||
| 8 | 16 | 50.63 | ||
| 8 | 8 | 46.87 | ||
| 8 | 1 | 36.48 |