| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 8 | 49.22 | ||
| 1 | 15 | 54.96 | ||
| 1 | 17 | 55.93 | ||
| 2 | 12 | 52.70 | ||
| 2 | 20 | NS | ||
| 2 | 20 | DQ | ||
| 3 | 20 | DQ | ||
| 3 | 1 | 43.89 | ||
| 3 | 9 | 50.81 | ||
| 4 | 20 | NS | ||
| 4 | 7 | 48.17 | ||
| 4 | 2 | 43.90 | ||
| 5 | 16 | 55.88 | ||
| 5 | 11 | 51.79 | ||
| 5 | 4 | 45.97 | ||
| 6 | 14 | 54.09 | ||
| 6 | 13 | 53.68 | ||
| 6 | 3 | 45.34 | ||
| 7 | 10 | 51.28 | ||
| 7 | 20 | DQ | ||
| 7 | 5 | 47.19 | ||
| 8 | 18 | 57.87 | ||
| 8 | 6 | 47.88 | ||
| 8 | 19 | 1:00.71 |