| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 18 | 49.34 | ||
| 1 | 21 | 51.89 | ||
| 1 | 17 | 48.93 | ||
| 2 | 11 | 44.42 | ||
| 2 | 20 | 51.10 | ||
| 2 | 9 | 43.86 | ||
| 3 | 8 | 43.85 | ||
| 3 | 2 | 37.86 | ||
| 3 | 1 | 37.07 | ||
| 4 | 13 | 45.16 | ||
| 4 | 5 | 39.26 | ||
| 4 | 12 | 44.90 | ||
| 5 | 7 | 43.08 | ||
| 5 | 4 | 38.62 | ||
| 5 | 3 | 38.18 | ||
| 6 | 10 | 44.18 | ||
| 6 | 6 | 40.32 | ||
| 6 | 14 | 45.32 | ||
| 7 | 15 | 46.05 | ||
| 7 | 16 | 47.46 | ||
| 7 | 22 | DQ | ||
| 8 | 19 | 50.38 | ||
| 8 | 22 | NS | ||
| 8 | 22 | DQ |