| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 20 | NS | ||
| 1 | 17 | 49.71 | ||
| 1 | 5 | 39.78 | ||
| 2 | 20 | DQ | ||
| 2 | 16 | 49.10 | ||
| 2 | 8 | 42.31 | ||
| 3 | 3 | 38.58 | ||
| 3 | 15 | 48.23 | ||
| 3 | 20 | DQ | ||
| 4 | 2 | 37.98 | ||
| 4 | 4 | 39.40 | ||
| 4 | 13 | 47.59 | ||
| 5 | 6 | 39.81 | ||
| 5 | 14 | 47.87 | ||
| 5 | 8 | 42.31 | ||
| 6 | 1 | 37.84 | ||
| 6 | 10 | 45.48 | ||
| 6 | 11 | 45.94 | ||
| 7 | 12 | 47.38 | ||
| 7 | 20 | NS | ||
| 7 | 18 | 49.88 | ||
| 8 | 19 | 50.85 | ||
| 8 | 7 | 39.94 | ||
| 8 | 9 | 44.80 |