| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 21 | 47.18 | ||
| 1 | 22 | 50.07 | ||
| 1 | 6 | 35.74 | ||
| 1 | 23 | NS | ||
| 2 | 15 | 43.25 | ||
| 2 | 9 | 40.72 | ||
| 2 | 5 | 35.01 | ||
| 2 | 8 | 40.34 | ||
| 3 | 14 | 42.03 | ||
| 3 | 16 | 44.79 | ||
| 3 | 2 | 34.19 | ||
| 3 | 17 | 45.25 | ||
| 4 | 10 | 40.78 | ||
| 4 | 7 | 39.15 | ||
| 4 | 11 | 40.88 | ||
| 4 | 1 | 32.63 | ||
| 5 | 18 | 45.37 | ||
| 5 | 19 | 45.78 | ||
| 5 | 13 | 41.13 | ||
| 5 | 3 | 34.46 | ||
| 6 | 23 | DQ | ||
| 6 | 20 | 46.99 | ||
| 6 | 12 | 41.04 | ||
| 6 | 4 | 34.64 |