| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 13 | 47.42 | ||
| 1 | 11 | 44.69 | ||
| 2 | 4 | 41.04 | ||
| 2 | 8 | 43.05 | ||
| 2 | 9 | 43.07 | ||
| 2 | 21 | DQ | ||
| 3 | 17 | 53.08 | ||
| 3 | 15 | 49.67 | ||
| 3 | 21 | NS | ||
| 3 | 1 | 38.08 | ||
| 4 | 20 | 57.13 | ||
| 4 | 2 | 39.82 | ||
| 4 | 19 | 53.47 | ||
| 4 | 5 | 41.27 | ||
| 5 | 21 | DQ | ||
| 5 | 16 | 52.15 | ||
| 5 | 3 | 40.42 | ||
| 5 | 21 | NS | ||
| 6 | 14 | 47.64 | ||
| 6 | 21 | NS | ||
| 6 | 6 | 42.07 | ||
| 6 | 21 | NS | ||
| 7 | 12 | 46.46 | ||
| 7 | 21 | DQ | ||
| 7 | 10 | 43.49 | ||
| 7 | 7 | 42.34 | ||
| 8 | 21 | DQ | ||
| 8 | 18 | 53.31 |