| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 19 | DQ | ||
| 1 | 12 | 50.00 | ||
| 1 | 6 | 48.29 | ||
| 2 | 13 | 50.46 | ||
| 2 | 18 | 1:01.99 | ||
| 2 | 19 | NS | ||
| 3 | 10 | 49.48 | ||
| 3 | 8 | 48.70 | ||
| 3 | 17 | 55.20 | ||
| 4 | 2 | 41.48 | ||
| 4 | 14 | 52.76 | ||
| 4 | 3 | 44.04 | ||
| 5 | 1 | 41.43 | ||
| 5 | 19 | DQ | ||
| 5 | 4 | 44.50 | ||
| 6 | 9 | 49.17 | ||
| 6 | 5 | 47.33 | ||
| 6 | 19 | NS | ||
| 7 | 15 | 54.02 | ||
| 7 | 7 | 48.43 | ||
| 7 | 11 | 49.56 | ||
| 8 | 19 | DQ | ||
| 8 | 16 | 54.64 |