| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 8 | 47.14 | ||
| 1 | 5 | 45.48 | ||
| 1 | 20 | 56.33 | ||
| 2 | 4 | 45.16 | ||
| 2 | 22 | DQ | ||
| 3 | 17 | 54.72 | ||
| 3 | 3 | 45.08 | ||
| 3 | 12 | 49.67 | ||
| 4 | 18 | 54.93 | ||
| 4 | 10 | 47.74 | ||
| 4 | 9 | 47.47 | ||
| 5 | 2 | 44.29 | ||
| 5 | 11 | 48.72 | ||
| 6 | 1 | 43.81 | ||
| 6 | 15 | 51.86 | ||
| 6 | 16 | 52.41 | ||
| 7 | 6 | 46.10 | ||
| 7 | 19 | 55.39 | ||
| 7 | 7 | 46.48 | ||
| 8 | 14 | 51.75 | ||
| 8 | 21 | 58.67 | ||
| 8 | 13 | 51.62 |