| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 13 | 52.17 | ||
| 1 | 8 | 46.59 | ||
| 1 | 17 | 54.66 | ||
| 1 | 5 | 42.80 | ||
| 2 | 14 | 53.50 | ||
| 2 | 7 | 42.86 | ||
| 2 | 3 | 42.52 | ||
| 2 | 12 | 50.69 | ||
| 3 | 6 | 42.84 | ||
| 3 | 18 | 55.66 | ||
| 3 | 20 | DQ | ||
| 3 | 1 | 37.18 | ||
| 4 | 19 | 56.97 | ||
| 4 | 20 | NS | ||
| 4 | 2 | 41.33 | ||
| 4 | 16 | 54.60 | ||
| 5 | 4 | 42.74 | ||
| 5 | 10 | 49.77 | ||
| 5 | 9 | 48.50 | ||
| 5 | 11 | 50.07 | ||
| 6 | 20 | DQ | ||
| 6 | 15 | 53.66 |