2 September 1973 at Wheathill
| Allcomers (Rowleycroft Trophy) | RH Sidecars (Committee Trophy) | Unlimited |
| 1- Cyril Jones | 1- Steve Smith & Roy French | 1- Cyril Jones |
| 2- Gerald Short | 2- Alan Artus & Graham Higgins | 2- Gerald Short |
| 3- Mick Burton | 3- P. Hill & B. Haines | 3- M. Watkins |
| RH Sidecars (3) | 500cc | RH Sidecars (1) |
| 1- Alan Artus & Graham Higgins | 1- Gerald Short | 1- P. Hill & B. Haines |
| 2- P. Hill & B. Haines | 2- Cyril Jones | 2- Alan Artus & Graham Higgins |
| 3- L. Crisp & B. Wood | 3- Tig Perry | 3- L. Crisp & B. Wood |
| 350cc | ||
| 1- Tig Perry | ||
| 2- Gerald Short | ||
| 3- Barrie Evans |