| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 7 | 51.76 (51.76) |
||
| 1 | 9 | 53.89 (54.32) |
||
| 2 | 11 | DQ (1:04.84) |
||
| 2 | 4 | 46.86 (46.86) |
||
| 3 | 5 | 47.74 (48.13) |
||
| 3 | 3 | 43.49 (43.49) |
||
| 4 | 6 | 49.38 (49.88) |
||
| 4 | 2 | 42.49 (42.49) |
||
| 5 | 8 | 53.84 (53.84) |
||
| 5 | 11 | DQ (52.16) |
||
| 6 | 10 | 59.06 (1:00.86) |
||
| 6 | 1 | 37.84 (38.33) |