| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 21 | NS | ||
| 1 | 10 | 47.72 | ||
| 1 | 20 | 55.21 | ||
| 2 | 13 | 51.00 | ||
| 2 | 3 | 41.91 | ||
| 2 | 18 | 53.21 | ||
| 3 | 9 | 47.65 | ||
| 3 | 2 | 41.39 | ||
| 4 | 16 | 52.27 | ||
| 4 | 11 | 48.01 | ||
| 4 | 1 | 40.06 | ||
| 5 | 5 | 43.59 | ||
| 5 | 4 | 43.09 | ||
| 5 | 21 | DQ | ||
| 6 | 6 | 44.07 | ||
| 6 | 15 | 51.97 | ||
| 6 | 8 | 47.00 | ||
| 7 | 14 | 51.64 | ||
| 7 | 21 | DQ | ||
| 7 | 19 | 53.93 | ||
| 8 | 17 | 53.01 | ||
| 8 | 12 | 50.74 | ||
| 8 | 7 | 44.43 |