| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 20 | 59.98 | ||
| 1 | 4 | 40.17 | ||
| 1 | 10 | 45.33 | ||
| 2 | 14 | 47.02 | ||
| 2 | 15 | 48.17 | ||
| 2 | 21 | DQ | ||
| 3 | 5 | 42.29 | ||
| 3 | 7 | 43.59 | ||
| 3 | 8 | 43.92 | ||
| 4 | 6 | 43.51 | ||
| 4 | 12 | 46.47 | ||
| 4 | 3 | 40.12 | ||
| 5 | 21 | DQ | ||
| 5 | 9 | 44.34 | ||
| 5 | 2 | 40.03 | ||
| 6 | 16 | 48.22 | ||
| 6 | 13 | 46.79 | ||
| 6 | 11 | 46.03 | ||
| 7 | 21 | NS | ||
| 7 | 18 | 53.45 | ||
| 7 | 1 | 36.93 | ||
| 8 | 17 | 49.34 | ||
| 8 | 21 | DQ | ||
| 8 | 19 | 55.43 |