EVENT 105 Men 50m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Ian Longster | 62 | Billingham | 52.99 |
| 3 | 3 | Norman Stephenson | 76 | Co Sund'land | 48.50 |
| 4 | 2 | Graeme Shutt | 71 | Co Sund'land | 49.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 5 | Tony Boyle | 37 | Balfron Barr | 35.81 |
| 2 | 9 | Michael Cummings | 29 | Stockton | 32.50 |
| 3 | 11 | Robert Wood | 48 | Darlington M | 30.50 |
| 4 | 10 | Tony Day | 55 | Darlington M | 30.50 |
| 5 | 8 | Ian Taylor | 44 | Darlington M | 32.66 |
| 6 | 4 | Steven Brewer | 56 | York City | 42.50 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 13 | Jonathan Stones | 18 | Durham City | 28.94 |
| 2 | 15 | David Barnett | 18 | Durham City | 27.78 |
| 3 | 17 | Nicholas Gowland | 24 | Billingham | 26.35 |
| 4 | 16 | Gareth Allen | 28 | Billingham | 27.00 |
| 5 | 14 | Conor Crozier | 28 | Co Sund'land | 28.23 |
| 6 | 12 | Anthony Simpson | 27 | Boldon | 29.70 |