| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 20 | DQ | ||
| 1 | 6 | 46.94 | ||
| 1 | 12 | 52.92 | ||
| 2 | 3 | 43.90 | ||
| 2 | 16 | 57.80 | ||
| 2 | 18 | 59.88 | ||
| 3 | 1 | 42.86 | ||
| 3 | 15 | 55.08 | ||
| 3 | 11 | 51.22 | ||
| 4 | 9 | 50.00 | ||
| 4 | 5 | 44.12 | ||
| 4 | 14 | 53.48 | ||
| 5 | 2 | 42.98 | ||
| 5 | 13 | 52.98 | ||
| 5 | 7 | 49.22 | ||
| 6 | 20 | NS | ||
| 6 | 4 | 43.95 | ||
| 6 | 17 | 58.53 | ||
| 7 | 8 | 49.31 | ||
| 7 | 20 | DQ | ||
| 7 | 19 | 1:13.95 | ||
| 8 | 10 | 50.03 | ||
| 8 | 20 | DQ | ||
| 8 | 20 | NS |