| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 11 | 49.51 | ||
| 1 | 17 | 58.21 | ||
| 2 | 13 | 51.51 | ||
| 2 | 18 | 59.85 | ||
| 2 | 7 | 47.15 | ||
| 3 | 8 | 47.60 | ||
| 3 | 6 | 46.70 | ||
| 3 | 21 | NS | ||
| 4 | 2 | 44.82 | ||
| 4 | 5 | 45.94 | ||
| 4 | 20 | 1:24.79 | ||
| 5 | 21 | DQ | ||
| 5 | 1 | 42.48 | ||
| 5 | 9 | 47.67 | ||
| 6 | 19 | 1:06.20 | ||
| 6 | 10 | 47.75 | ||
| 6 | 12 | 51.23 | ||
| 7 | 4 | 45.12 | ||
| 7 | 15 | 54.87 | ||
| 7 | 3 | 44.83 | ||
| 8 | 16 | 55.77 | ||
| 8 | 14 | 53.69 |