| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 19 | NS | ||
| 1 | 12 | 56.02 | ||
| 2 | 4 | 49.27 | ||
| 2 | 17 | 1:13.34 | ||
| 2 | 5 | 50.47 | ||
| 3 | 1 | 45.55 | ||
| 3 | 16 | 1:04.66 | ||
| 3 | 3 | 48.92 | ||
| 4 | 7 | 50.83 | ||
| 4 | 14 | 1:01.39 | ||
| 4 | 19 | NS | ||
| 5 | 2 | 47.50 | ||
| 5 | 11 | 54.39 | ||
| 5 | 15 | 1:02.12 | ||
| 6 | 18 | 1:21.57 | ||
| 6 | 10 | 54.24 | ||
| 6 | 8 | 50.90 | ||
| 7 | 9 | 53.60 | ||
| 7 | 6 | 50.74 | ||
| 7 | 19 | DQ | ||
| 8 | 13 | 56.08 | ||
| 8 | 19 | DQ |