First 1 in each heat and next 6 fastest progress to the final.
| Place | Centre | Result | ||
|---|---|---|---|---|
| 1 | Eastern Districts A | 56.34 | Q | |
| 2 | Western Athletics A | 58.68 | q | |
| 3 | Eastern Districts B | 58.95 | q | |
| 4 | Plympton A | 59.69 | q | |
| 5 | Ingle Farm A | 1:04.53 | ||
| 6 | Mt Barker A | 1:08.12 | ||
| 7 | Golden Grove A | 1:08.41 |
| Place | Centre | Result | ||
|---|---|---|---|---|
| 1 | Enfield A | 57.20 | Q | |
| 2 | Salisbury A | 1:00.47 | q | |
| 3 | Tea Tree Gully A | 1:01.24 | q | |
| 4 | Plympton B | 1:01.53 | q | |
| 5 | Gawler A | 1:05.90 | ||
| 6 | Western Athletics B | 1:07.61 | ||
| 7 | Port Adelaide A | 1:08.21 |
| Place | Centre | Result | ||
|---|---|---|---|---|
| 1 | Eastern Districts A | 56.34 | Q | |
| 2 | Enfield A | 57.20 | Q | |
| 3 | Western Athletics A | 58.68 | q | |
| 4 | Eastern Districts B | 58.95 | q | |
| 5 | Plympton A | 59.69 | q | |
| 6 | Salisbury A | 1:00.47 | q | |
| 7 | Tea Tree Gully A | 1:01.24 | q | |
| 8 | Plympton B | 1:01.53 | q | |
| 9 | Ingle Farm A | 1:04.53 | ||
| 10 | Gawler A | 1:05.90 | ||
| 11 | Western Athletics B | 1:07.61 | ||
| 12 | Mt Barker A | 1:08.12 | ||
| 13 | Port Adelaide A | 1:08.21 | ||
| 14 | Golden Grove A | 1:08.41 |