First 1 in each heat and next 6 fastest progress to the final.
| Place | Centre | Result | ||
|---|---|---|---|---|
| 1 | Salisbury A | 57.73 | Q | |
| 2 | Western Athletics A | 58.44 | q | |
| 3 | Magill A | 59.37 | q | |
| 4 | Mt Barker A | 59.69 | q | |
| 5 | Golden Grove A | 1:00.66 | q | |
| 6 | Eastern Districts B | 1:01.51 | q | |
| 7 | Northern Districts A | 1:05.99 |
| Place | Centre | Result | ||
|---|---|---|---|---|
| 1 | Tea Tree Gully A | 56.55 | Q | |
| 2 | Eastern Districts A | 58.61 | q | |
| 3 | Western Athletics B | 1:02.96 | ||
| 4 | Munno Para A | 1:03.75 | ||
| 5 | Mt Barker B | 1:06.70 | ||
| 6 | Ingle Farm A | 1:12.14 |
| Place | Centre | Result | ||
|---|---|---|---|---|
| 1 | Tea Tree Gully A | 56.55 | Q | |
| 2 | Salisbury A | 57.73 | Q | |
| 3 | Western Athletics A | 58.44 | q | |
| 4 | Eastern Districts A | 58.61 | q | |
| 5 | Magill A | 59.37 | q | |
| 6 | Mt Barker A | 59.69 | q | |
| 7 | Golden Grove A | 1:00.66 | q | |
| 8 | Eastern Districts B | 1:01.51 | q | |
| 9 | Western Athletics B | 1:02.96 | ||
| 10 | Munno Para A | 1:03.75 | ||
| 11 | Northern Districts A | 1:05.99 | ||
| 12 | Mt Barker B | 1:06.70 | ||
| 13 | Ingle Farm A | 1:12.14 |