| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 15 | 50.58 | ||
| 1 | 18 | 53.42 | ||
| 2 | 8 | 46.16 | ||
| 2 | 16 | 51.26 | ||
| 2 | 11 | 48.17 | ||
| 3 | 13 | 49.17 | ||
| 3 | 12 | 48.34 | ||
| 3 | 7 | 45.04 | ||
| 4 | 5 | 44.05 | ||
| 4 | 19 | 53.75 | ||
| 4 | 1 | 41.79 | ||
| 5 | 4 | 44.01 | ||
| 5 | 21 | NS | ||
| 5 | 3 | 43.72 | ||
| 6 | 10 | 47.99 | ||
| 6 | 6 | 44.83 | ||
| 6 | 2 | 42.87 | ||
| 7 | 21 | NS | ||
| 7 | 14 | 50.52 | ||
| 7 | 17 | 53.18 | ||
| 8 | 9 | 46.26 | ||
| 8 | 20 | 59.16 |