| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 22 | 50.78 | ||
| 1 | 7 | 42.54 | ||
| 1 | 19 | 50.19 | ||
| 2 | 12 | 47.35 | ||
| 2 | 28 | DQ | ||
| 2 | 13 | 47.44 | ||
| 3 | 24 | 53.45 | ||
| 3 | 18 | 50.01 | ||
| 3 | 23 | 50.85 | ||
| 4 | 28 | DQ | ||
| 4 | 11 | 46.57 | ||
| 4 | 8 | 42.68 | ||
| 5 | 16 | 49.23 | ||
| 5 | 1 | 37.94 | ||
| 5 | 9 | 43.94 | ||
| 6 | 10 | 46.03 | ||
| 6 | 14 | 48.54 | ||
| 6 | 5 | 40.82 | ||
| 7 | 25 | 53.74 | ||
| 7 | 28 | DQ | ||
| 7 | 3 | 40.21 | ||
| 8 | 2 | 40.16 | ||
| 8 | 15 | 48.84 | ||
| 8 | 17 | 49.50 | ||
| 9 | 26 | 55.05 | ||
| 9 | 6 | 42.37 | ||
| 9 | 21 | 50.71 | ||
| 10 | 20 | 50.41 | ||
| 10 | 27 | 58.31 | ||
| 10 | 4 | 40.75 |