| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 11 | 53.79 | ||
| 1 | 4 | 47.57 | ||
| 1 | 20 | 1:00.06 | ||
| 2 | 17 | 56.62 | ||
| 2 | 9 | 51.89 | ||
| 2 | 21 | NS | ||
| 3 | 6 | 49.01 | ||
| 3 | 16 | 55.69 | ||
| 3 | 12 | 53.94 | ||
| 4 | 14 | 55.38 | ||
| 4 | 10 | 52.96 | ||
| 4 | 3 | 45.94 | ||
| 5 | 21 | NS | ||
| 5 | 15 | 55.65 | ||
| 5 | 5 | 48.05 | ||
| 6 | 18 | 57.42 | ||
| 6 | 2 | 45.39 | ||
| 6 | 1 | 45.08 | ||
| 7 | 7 | 49.57 | ||
| 7 | 19 | 1:00.05 | ||
| 7 | 8 | 50.76 | ||
| 8 | 13 | 53.95 | ||
| 8 | 21 | DQ | ||
| 8 | 21 | DQ |