4 September 1978 at Brompton Hall, Churchstoke
| Sarn Super | Sarn Super | Unlimited (Mid-Wales Centre C’ship) |
| 1- Les Collins | 1- Trevor Jones & Paul Gollins | 1- Malc Corradine |
| 2- Tom Leadbitter | 2- Roger Measor & Maurice Owen | 2- Tom Leadbitter |
| 3- Malc Corradine | 3- Bobby Hall & Eric Wynne | 3- Terry Owen |
| 500cc | RH Sidecars (Mid-Wales Centre C’ship) | 350cc |
| 1- Gerald Short | 1- Trevor Jones & Paul Gollins | 1- Gerald Short |
| 2- Malc Corradine | 2- Bobby Hall & Eric Wynne | 2- Barry Robinson |
| 3- Les Collins | 3- Dave Ellis & Alan Davies | 3- Mick Watkins |
| 250cc | ||
| 1- Elwyn Beedles | ||
| 2- Maurice Jones | ||
| 3- Les Collins |
27 March 1977 at Churchstoke
| Results Not-known |