| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 20 | NS | ||
| 1 | 9 | 47.08 | ||
| 1 | 16 | 51.53 | ||
| 2 | 20 | NS | ||
| 2 | 17 | 51.80 | ||
| 2 | 5 | 42.17 | ||
| 3 | 3 | 38.26 | ||
| 3 | 8 | 47.04 | ||
| 3 | 11 | 47.88 | ||
| 4 | 2 | 36.30 | ||
| 4 | 1 | 35.91 | ||
| 4 | 12 | 48.19 | ||
| 5 | 10 | 47.51 | ||
| 5 | 6 | 43.17 | ||
| 5 | 4 | 40.58 | ||
| 6 | 20 | NS | ||
| 6 | 15 | 50.38 | ||
| 6 | 14 | 50.12 | ||
| 7 | 13 | 48.60 | ||
| 7 | 7 | 45.11 | ||
| 7 | 18 | 52.80 | ||
| 8 | 20 | DQ | ||
| 8 | 19 | 55.40 |