| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 7 | 46.92 | ||
| 1 | 15 | 54.30 | ||
| 1 | 19 | 56.20 | ||
| 2 | 13 | 52.39 | ||
| 2 | 1 | 42.41 | ||
| 2 | 22 | NS | ||
| 3 | 16 | 54.96 | ||
| 3 | 11 | 51.39 | ||
| 3 | 4 | 44.94 | ||
| 4 | 10 | 49.13 | ||
| 4 | 6 | 46.87 | ||
| 4 | 17 | 55.93 | ||
| 5 | 22 | DQ | ||
| 5 | 18 | 56.11 | ||
| 5 | 2 | 43.29 | ||
| 6 | 3 | 43.62 | ||
| 6 | 9 | 49.09 | ||
| 6 | 20 | 58.00 | ||
| 7 | 5 | 44.95 | ||
| 7 | 12 | 52.06 | ||
| 7 | 14 | 53.51 | ||
| 8 | 8 | 48.52 | ||
| 8 | 21 | 59.19 | ||
| 8 | 22 | NS |