31 August 1980 at Brinklow
| 500cc | RH Sidecars | Unlimited |
| 1- Peter Carr | 1- Paul Norman & John Mitton | 1- Peter Carr |
| 2- Ross Winwood | 2- Trev Whitelam & Bob Starman | 2- Phil Alderman |
| 3- Rob Homer | 3- Dave Makin & Bob Lord | 3- Rob Homer |
| 350cc | 250cc | |
| 1- Steve Deerham | 1- Steve Deerham | |
| 2- Ray Gibbins | 2- Roland Tebbs | |
| 3- Kevin Gentle | 3- Ron Radcliffe |