8 July 1973 at Barston
| 500cc (Championship) | RH Sidecars (Championship) | 350cc (Championship) |
| 1- Tig Perry | 1- A. Artus & G. Higgin | 1- Tig Perry |
| 2- P. McCann | 2- A. Attwell & K. Attwell | 2- J. Bowley |
| 3- Dave Drinkwater | 3- F. Verlic & A. Prescott | 3- C. Davenport |
| RH Sidecars (Open) | 250cc (Championship) | RH Sidecars (Aston & Shelton Trophy) |
| 1- G. Matthews & A. Harley | 1- Tig Perry | 1- A. Artus & G. Higgin |
| 2- A. Artus & G. Higgin | 2- T. Owen | 2- P. Norman & J. Morron |
| 3- A. Attwell & K. Attwell | 3- Mick Burton | 3- G. Lloyd & ANOther |
| Shelton Trophy | Unlimited | John Huntley Trophy for Novices |
| D. Armstrong | 1- Tig Perry | M. James |
| 2- E. Moseley | ||
| Vintage (2) | 3- A. Lidgate | Vintage (1) |
| A. Lidgate | A. Lidgate |