13 August 1978 at Perdiswell Park, Worcester
| 500cc | 350cc | 250cc |
| 1- Les Collins | 1- Gerald Short | 1- Bill Pye |
| 2= Gerald Short | 2= B. Robinson | 2= Ian Rutter |
| 2= Richard Moore | 2= Rob Smith | 2-= Mark Nicholson |
| 4- S. Taylor | 4- Mark Wadsworth | 4= Clayton Williams |
| 5= D. Simpson | 5- Tig Perry | 4= J. Cox |
| 5= Tom Leadbitter | 6- S. Ryding | 4= Rob Smith & Tig Perry |
| 500cc Invitation Race | RH Sidecars | 250cc Invitation Race |
| Gerald Short | 1= Steve Smith & Trevor Pye | Clayton Williams |
| 1= Doug Teasdale & Keith Chapman | ||
| 350cc Invitation Race | 3- Pete Brown & John Morron | RH Sidecars Invitation Race |
| Gerald Short | 4= M. Dawkins & J. Hall | Doug Teasdale & Keith Chapman |
| 4= Colin Banks & Wally Brammer | ||
| 4= Eddie Tucker & Dave WArd |
30 July 1978 at Perdiswell Park
| Unlimited (Worcester City Show) | 500cc | Unlimited (for Local Residents) |
| 1- D. Hope | 1- D. Hope | 1- Neville Clegg |
| 2- Bruce Cribb | 2- J. Mills | 2- S. Newman |
| 3- A. Browning | 3- K. Hawker | 3- Eddie Clinton |
| 350cc | 250cc | |
| 1- Clayton Williams | 1- Clayton Williams | |
| 2- Mark Wadsworth | 2- Mark Wadsworth | |
| 3- Mike Watkins | 3- Tig Perry |