| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 23 | DQ | ||
| 1 | 18 | 54.69 | ||
| 1 | 7 | 43.73 | ||
| 2 | 20 | 55.39 | ||
| 2 | 4 | 43.47 | ||
| 2 | 17 | 54.46 | ||
| 3 | 10 | 49.14 | ||
| 3 | 5 | 43.52 | ||
| 3 | 14 | 52.31 | ||
| 4 | 12 | 50.21 | ||
| 4 | 8 | 46.53 | ||
| 4 | 2 | 41.77 | ||
| 5 | 1 | 41.75 | ||
| 5 | 9 | 48.99 | ||
| 5 | 16 | 52.93 | ||
| 6 | 15 | 52.35 | ||
| 6 | 6 | 43.65 | ||
| 6 | 13 | 52.17 | ||
| 7 | 23 | DQ | ||
| 7 | 21 | 55.75 | ||
| 7 | 11 | 49.36 | ||
| 8 | 3 | 43.46 | ||
| 8 | 22 | 58.01 | ||
| 8 | 19 | 54.73 |