7 September 1980 at Brompton Hall, Churchstoke
| Unlimited (Mid-Wales Centre C’ship) | RH Sidecars (Mid-Wales Centre C’ship) | Unlimited |
| 1- Phil Alderman | 1- Gordon Matthews & Alan Harley | 1- Les Collins |
| 2- Clint Ward | 2- Alan Artus & Frank Burke | 2- Clint Ward |
| 3- Les Collins | 3- Roger Reece & Brian Dunn | 3- Rob Homer |
| 500cc | RH Sidecars | 350cc |
| 1- Les Collins | 1- Alan Artus & Frank Burke | 1- M. Wrathall |
| 2- Phil Alderman | 2- Len Foreman & S. Burdell | 2- Adrian Kessell |
| 3- Clint Ward | 3- Gordon Matthews & Alan Harley | 3- Phil Alderman |
| 250cc | ||
| 1- Kevin Jancey | ||
| 2- Dave Shaw | ||
| 3- Jim Sudall |
13 April 1980 at Brompton Hall, Churchstoke
| Unlimited (Mid-Wales Centre C’ship) | RH Sidecars (Mid-Wales Centre C’ship) | Unlimited |
| 1- Gerald Short | 1- Steve Smith & Terry Pye | 1- Les Collins |
| 2- Les Collins | 2- Rob Stoneman & Rowland Broomfield | 2- Martin Goodwin |
| 3- Martin Goodwin | 3- Trevor Jones & Paul Gollins | 3- Terry Owen |
| 500cc | RH Sidecars | 350cc |
| 1- Les Collins | 1- Ken Jones & Steve Wheeler | 1- Clayton Williams |
| 2- Martin Goodwin | 2- Gordon Matthews & Alan Harley | 2- Rob Smith |
| 3- Dave Morton | 3- Jim Hood & R. Simpson | 3- Duncan Tolhurst |
| 250cc | ||
| 1- Mark Wadsworth | ||
| 2- Dave Perry | ||
| 3- Martin Scarisbrick |