| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 10 | 48.74 | ||
| 1 | 18 | 51.72 | ||
| 1 | 23 | NS | ||
| 2 | 11 | 49.45 | ||
| 2 | 6 | 40.49 | ||
| 2 | 17 | 51.64 | ||
| 3 | 22 | 54.58 | ||
| 3 | 16 | 51.55 | ||
| 3 | 5 | 39.41 | ||
| 4 | 13 | 49.98 | ||
| 4 | 3 | 39.11 | ||
| 4 | 9 | 47.15 | ||
| 5 | 12 | 49.56 | ||
| 5 | 19 | 52.82 | ||
| 5 | 1 | 37.90 | ||
| 6 | 15 | 51.18 | ||
| 6 | 7 | 41.91 | ||
| 6 | 8 | 46.77 | ||
| 7 | 2 | 38.46 | ||
| 7 | 20 | 53.23 | ||
| 7 | 14 | 50.59 | ||
| 8 | 23 | DQ | ||
| 8 | 4 | 39.25 | ||
| 8 | 21 | 53.45 |