| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 2 | 19 | 52.44 | ||
| 2 | 22 | DQ | ||
| 3 | 13 | 47.49 | ||
| 3 | 20 | 53.69 | ||
| 3 | 7 | 43.21 | ||
| 3 | 15 | 48.37 | ||
| 4 | 18 | 52.19 | ||
| 4 | 22 | DQ | ||
| 4 | 2 | 38.82 | ||
| 4 | 8 | 44.66 | ||
| 5 | 9 | 44.77 | ||
| 5 | 4 | 41.13 | ||
| 5 | 1 | 36.84 | ||
| 5 | 12 | 46.31 | ||
| 6 | 14 | 47.88 | ||
| 6 | 3 | 38.93 | ||
| 6 | 22 | NS | ||
| 6 | 16 | 49.98 | ||
| 7 | 10 | 44.86 | ||
| 7 | 21 | 54.31 | ||
| 7 | 6 | 42.27 | ||
| 7 | 11 | 45.33 | ||
| 8 | 5 | 41.20 | ||
| 8 | 22 | DQ | ||
| 8 | 17 | 51.42 |