| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 20 | 55.56 | ||
| 1 | 5 | 43.80 | ||
| 1 | 11 | 48.25 | ||
| 2 | 21 | DQ | ||
| 2 | 21 | NS | ||
| 2 | 18 | 54.20 | ||
| 3 | 19 | 54.95 | ||
| 3 | 7 | 46.41 | ||
| 3 | 8 | 46.47 | ||
| 4 | 2 | 40.95 | ||
| 4 | 6 | 45.27 | ||
| 4 | 15 | 52.38 | ||
| 5 | 9 | 47.42 | ||
| 5 | 4 | 42.42 | ||
| 5 | 21 | DQ | ||
| 6 | 10 | 47.84 | ||
| 6 | 13 | 51.46 | ||
| 6 | 21 | NS | ||
| 7 | 16 | 53.88 | ||
| 7 | 14 | 52.00 | ||
| 7 | 1 | 39.68 | ||
| 8 | 17 | 53.98 | ||
| 8 | 3 | 42.00 | ||
| 8 | 12 | 48.77 |