| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 21 | 51.26 | ||
| 1 | 22 | 52.25 | ||
| 1 | 26 | DQ | ||
| 2 | 2 | 40.75 | ||
| 2 | 10 | 45.49 | ||
| 2 | 25 | 56.96 | ||
| 3 | 19 | 49.74 | ||
| 3 | 24 | 55.99 | ||
| 3 | 5 | 43.15 | ||
| 4 | 20 | 50.46 | ||
| 4 | 7 | 43.52 | ||
| 4 | 4 | 42.86 | ||
| 5 | 9 | 44.51 | ||
| 5 | 12 | 46.43 | ||
| 5 | 3 | 41.71 | ||
| 6 | 14 | 46.57 | ||
| 6 | 1 | 40.31 | ||
| 6 | 16 | 47.66 | ||
| 7 | 26 | NS | ||
| 7 | 15 | 46.85 | ||
| 7 | 26 | DQ | ||
| 8 | 23 | 53.30 | ||
| 8 | 11 | 45.91 | ||
| 8 | 13 | 46.46 | ||
| 9 | 17 | 47.81 | ||
| 9 | 26 | DQ | ||
| 9 | 8 | 44.42 | ||
| 10 | 26 | DQ | ||
| 10 | 6 | 43.37 | ||
| 10 | 18 | 48.59 |