| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 14 | 49.99 | ||
| 1 | 20 | 52.73 | ||
| 2 | 24 | NS | ||
| 2 | 21 | 53.16 | ||
| 2 | 17 | 51.55 | ||
| 3 | 5 | 37.68 | ||
| 3 | 10 | 46.16 | ||
| 3 | 22 | 56.78 | ||
| 4 | 4 | 37.58 | ||
| 4 | 24 | DQ | ||
| 4 | 9 | 45.89 | ||
| 5 | 1 | 35.25 | ||
| 5 | 11 | 46.64 | ||
| 5 | 18 | 52.02 | ||
| 6 | 8 | 45.07 | ||
| 6 | 2 | 35.64 | ||
| 6 | 19 | 52.54 | ||
| 7 | 3 | 36.59 | ||
| 7 | 12 | 47.93 | ||
| 7 | 15 | 50.07 | ||
| 8 | 24 | NS | ||
| 8 | 13 | 48.42 | ||
| 8 | 24 | NS | ||
| 9 | 6 | 38.75 | ||
| 9 | 24 | NS | ||
| 9 | 24 | NS | ||
| 10 | 16 | 50.80 | ||
| 10 | 7 | 38.77 | ||
| 10 | 23 | 59.42 |