First 1 in each heat and next 5 fastest progress to the final.
| Place | Centre | Result | ||
|---|---|---|---|---|
| 1 | Western Athletics A | 1:06.28 | Q | |
| 2 | Eastern Districts B | 1:08.71 | q | |
| 3 | Enfield A | 1:10.42 | q | |
| 4 | Golden Grove A | 1:10.53 | ||
| 5 | Salisbury A | 1:11.39 | ||
| 6 | Magill A | 1:19.41 | ||
| 7 | Northern Districts C | 1:34.32 |
| Place | Centre | Result | ||
|---|---|---|---|---|
| 1 | Northern Districts A | 1:07.51 | Q | |
| 2 | Western Athletics B | 1:07.68 | q | |
| 3 | Tea Tree Gully A | 1:09.42 | q | |
| 4 | Port Adelaide A | 1:11.24 | ||
| 5 | Plympton B | 1:12.40 | ||
| 6 | Lyndoch & Districts A | 1:24.87 |
| Place | Centre | Result | ||
|---|---|---|---|---|
| 1 | Eastern Districts A | 1:05.66 | Q | |
| 2 | Plympton A | 1:08.01 | q | |
| 3 | Mt Barker A | 1:11.05 | ||
| 4 | Mid Coast A | 1:11.61 | ||
| 5 | Northern Districts B | 1:13.47 | ||
| 6 | Tea Tree Gully B | 1:20.14 | ||
| 7 | Woodville A | 1:20.78 |
| Place | Centre | Result | ||
|---|---|---|---|---|
| 1 | Eastern Districts A | 1:05.66 | Q | |
| 2 | Western Athletics A | 1:06.28 | Q | |
| 3 | Northern Districts A | 1:07.51 | Q | |
| 4 | Western Athletics B | 1:07.68 | q | |
| 5 | Plympton A | 1:08.01 | q | |
| 6 | Eastern Districts B | 1:08.71 | q | |
| 7 | Tea Tree Gully A | 1:09.42 | q | |
| 8 | Enfield A | 1:10.42 | q | |
| 9 | Golden Grove A | 1:10.53 | ||
| 10 | Mt Barker A | 1:11.05 | ||
| 11 | Port Adelaide A | 1:11.24 | ||
| 12 | Salisbury A | 1:11.39 | ||
| 13 | Mid Coast A | 1:11.61 | ||
| 14 | Plympton B | 1:12.40 | ||
| 15 | Northern Districts B | 1:13.47 | ||
| 16 | Magill A | 1:19.41 | ||
| 17 | Tea Tree Gully B | 1:20.14 | ||
| 18 | Woodville A | 1:20.78 | ||
| 19 | Lyndoch & Districts A | 1:24.87 | ||
| 20 | Northern Districts C | 1:34.32 |