| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 25 | 51.52 | ||
| 1 | 3 | 41.34 | ||
| 1 | 27 | 53.40 | ||
| 2 | 29 | DQ | ||
| 2 | 24 | 49.94 | ||
| 2 | 16 | 47.93 | ||
| 3 | 26 | 52.65 | ||
| 3 | 17 | 48.06 | ||
| 3 | 2 | 40.09 | ||
| 4 | 11 | 46.38 | ||
| 4 | 7 | 42.04 | ||
| 4 | 15 | 47.65 | ||
| 5 | 1 | 39.53 | ||
| 5 | 8 | 42.52 | ||
| 5 | 14 | 47.03 | ||
| 6 | 5 | 41.62 | ||
| 6 | 19 | 48.72 | ||
| 6 | 18 | 48.17 | ||
| 7 | 23 | 49.91 | ||
| 7 | 10 | 45.81 | ||
| 7 | 22 | 49.72 | ||
| 8 | 12 | 46.74 | ||
| 8 | 6 | 41.96 | ||
| 8 | 29 | DQ | ||
| 9 | 13 | 46.96 | ||
| 9 | 20 | 49.35 | ||
| 9 | 9 | 43.40 | ||
| 10 | 4 | 41.35 | ||
| 10 | 21 | 49.63 | ||
| 10 | 28 | 54.25 |