| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 7 | 46.42 | ||
| 1 | 15 | 52.91 | ||
| 1 | 11 | 49.97 | ||
| 2 | 9 | 47.20 | ||
| 2 | 1 | 40.45 | ||
| 2 | 17 | 53.94 | ||
| 3 | 21 | DQ | ||
| 3 | 5 | 44.17 | ||
| 3 | 10 | 49.78 | ||
| 4 | 18 | 54.38 | ||
| 4 | 12 | 50.61 | ||
| 4 | 4 | 43.79 | ||
| 5 | 21 | DQ | ||
| 5 | 3 | 43.58 | ||
| 5 | 14 | 52.69 | ||
| 6 | 20 | 55.85 | ||
| 6 | 8 | 47.17 | ||
| 6 | 19 | 55.31 | ||
| 7 | 2 | 43.45 | ||
| 7 | 6 | 45.00 | ||
| 7 | 16 | 53.06 | ||
| 8 | 21 | DQ | ||
| 8 | 13 | 51.16 | ||
| 8 | 21 | DQ |