| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 31 | 53.45 | ||
| 1 | 10 | 46.82 | ||
| 1 | 20 | 48.73 | ||
| 1 | 19 | 48.70 | ||
| 2 | 18 | 48.21 | ||
| 2 | 17 | 48.13 | ||
| 2 | 24 | 49.80 | ||
| 2 | 16 | 47.99 | ||
| 3 | 28 | 51.49 | ||
| 3 | 2 | 44.47 | ||
| 3 | 6 | 45.87 | ||
| 3 | 5 | 45.55 | ||
| 4 | 22 | 49.55 | ||
| 4 | 29 | 52.06 | ||
| 4 | 13 | 47.47 | ||
| 4 | 9 | 46.47 | ||
| 5 | 4 | 44.98 | ||
| 5 | 21 | 49.13 | ||
| 5 | 23 | 49.61 | ||
| 5 | 8 | 46.26 | ||
| 6 | 12 | 47.31 | ||
| 6 | 11 | 47.30 | ||
| 6 | 25 | 50.14 | ||
| 6 | 26 | 50.32 | ||
| 7 | 3 | 44.49 | ||
| 7 | 32 | DQ | ||
| 7 | 1 | 43.12 | ||
| 7 | 14 | 47.66 | ||
| 8 | 30 | 52.87 | ||
| 8 | 7 | 46.11 | ||
| 8 | 15 | 47.92 | ||
| 8 | 27 | 50.65 |