| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 20 | 1:23.51 | ||
| 1 | 3 | 45.15 | ||
| 1 | 16 | 51.27 | ||
| 2 | 21 | DQ | ||
| 2 | 21 | DQ | ||
| 3 | 15 | 51.25 | ||
| 3 | 5 | 46.46 | ||
| 3 | 13 | 50.43 | ||
| 4 | 7 | 47.74 | ||
| 4 | 10 | 48.47 | ||
| 4 | 14 | 50.53 | ||
| 5 | 4 | 46.37 | ||
| 5 | 19 | 54.15 | ||
| 5 | 9 | 48.33 | ||
| 6 | 12 | 50.02 | ||
| 6 | 17 | 53.13 | ||
| 6 | 18 | 54.08 | ||
| 7 | 11 | 48.67 | ||
| 7 | 6 | 46.72 | ||
| 7 | 2 | 43.51 | ||
| 8 | 1 | 39.28 | ||
| 8 | 8 | 47.96 |