| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 13 | 49.54 | ||
| 1 | 21 | NS | ||
| 1 | 14 | 49.68 | ||
| 2 | 17 | 51.32 | ||
| 2 | 3 | 41.32 | ||
| 2 | 12 | 49.52 | ||
| 3 | 18 | 52.79 | ||
| 3 | 2 | 39.40 | ||
| 3 | 16 | 50.96 | ||
| 4 | 10 | 46.60 | ||
| 4 | 7 | 45.12 | ||
| 4 | 9 | 46.53 | ||
| 5 | 21 | NS | ||
| 5 | 11 | 47.93 | ||
| 5 | 1 | 38.73 | ||
| 6 | 21 | DQ | ||
| 6 | 8 | 46.21 | ||
| 6 | 4 | 41.95 | ||
| 7 | 15 | 50.86 | ||
| 7 | 6 | 45.03 | ||
| 7 | 19 | 55.28 | ||
| 8 | 21 | DQ | ||
| 8 | 5 | 43.16 | ||
| 8 | 20 | 1:02.50 |