| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 9 | 50.90 | ||
| 1 | 6 | 42.73 | ||
| 1 | 18 | DQ | ||
| 2 | 12 | 52.66 | ||
| 2 | 5 | 42.32 | ||
| 2 | 15 | 55.89 | ||
| 3 | 4 | 42.05 | ||
| 3 | 16 | 58.43 | ||
| 3 | 12 | 52.66 | ||
| 4 | 2 | 38.39 | ||
| 4 | 10 | 51.07 | ||
| 4 | 8 | 49.83 | ||
| 5 | 14 | 55.13 | ||
| 5 | 11 | 51.59 | ||
| 5 | 1 | 37.01 | ||
| 6 | 17 | 1:01.17 | ||
| 6 | 3 | 41.67 | ||
| 6 | 13 | 53.97 | ||
| 7 | 7 | 47.04 | ||
| 7 | 18 | DQ | ||
| 7 | 18 | NS | ||
| 8 | 18 | DQ |