| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 3 | 48.38 (11.68 23.65 35.93 48.38) |
||
| 2 | 5 | 50.17 (12.43 24.58 37.33 50.17) |
||
| 3 | 7 | 50.81 (11.55 23.69 36.93 50.81) |
||
| 4 | 1 | 46.57 (10.92 22.48 34.59 46.57) |
||
| 5 | 2 | 48.13 (11.65 23.63 36.05 48.13) |
||
| 6 | 4 | 49.76 (12.00 24.25 37.10 49.76) |
||
| 7 | 8 | 52.56 (12.83 25.55 39.05 52.56) |
||
| 8 | 6 | 50.28 (11.54 23.97 37.57 50.28) |