EVENT 201 Men/Women 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Graeme Shutt | 71 | Co Sund'land | 1:57.00 |
| 2 | 3 | Norman Stephenson | 76 | Co Sund'land | 1:52.00 |
| 3 | 7 | Ian Taylor | 44 | Darlington M | 1:16.94 |
| 4 | 5 | Erzsebet Kiss | 44 | Etwall | 1:20.67 |
| 5 | 2 | Noreen Edery | 69 | East Leeds | 1:52.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 9 | Paul Clemence | 50 | East Leeds | 1:10.00 |
| 2 | 11 | Jonathan Stones | 18 | Durham City | 1:04.70 |
| 3 | 14 | Nicholas Gowland | 24 | Billingham | 57.82 |
| 4 | 13 | Gareth Allen | 28 | Billingham | 1:00.00 |
| 5 | 10 | Ross Canning | 38 | Wear Valley | 1:06.50 |
| 6 | 8 | Amii Turnbull | 26 | Co Sund'land | 1:13.60 |