| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 2 | 2 | Patricia Jackson | 71 | East Anglian | 52.00 |
| 3 | 4 | Hilary Crick | 69 | East Leeds | 50.50 |
| 4 | 3 | Jayne Dresser | 55 | East Leeds | 51.66 |
| 5 | 1 | Louise McLellan | 48 | Co Sund'land | 1:00.00 |
| Heat Number - 2 | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 6 | Gail Wrangles | 48 | East Leeds | 48.65 |
| 2 | 8 | Gillian Smith | 47 | Boldon | 46.00 |
| 3 | 10 | Hayley Scholes | 21 | King'f Scar | 42.00 |
| 4 | 9 | Carol Boagey | 59 | AFSHartlepol | 44.61 |
| 5 | 7 | Joanne Fixter | 44 | Billingham | 47.60 |
| 6 | 5 | Joanne Smith | 47 | Boldon | 50.00 |