| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 15 | 53.99 | ||
| 1 | 1 | 41.58 | ||
| 1 | 9 | 50.64 | ||
| 2 | 12 | 52.00 | ||
| 2 | 18 | 55.16 | ||
| 2 | 22 | DQ | ||
| 3 | 8 | 50.11 | ||
| 3 | 21 | 56.26 | ||
| 3 | 7 | 46.23 | ||
| 4 | 3 | 43.50 | ||
| 4 | 13 | 52.64 | ||
| 4 | 20 | 55.51 | ||
| 5 | 2 | 41.96 | ||
| 5 | 14 | 53.18 | ||
| 5 | 10 | 51.28 | ||
| 6 | 4 | 43.74 | ||
| 6 | 11 | 51.40 | ||
| 6 | 6 | 44.70 | ||
| 7 | 22 | DQ | ||
| 7 | 22 | NS | ||
| 7 | 19 | 55.33 | ||
| 8 | 16 | 54.01 | ||
| 8 | 5 | 44.06 | ||
| 8 | 17 | 54.30 |