2 August 1970 at Brenzett
| Unlimited | RH Sidecars (Championship) | 500cc (Championship) |
| 1- B. Maxted | 1- J. Mills & R. Penfold | 1- B. Maxted |
| 2- D. Godden | 2- D. Manning & D. Brewster | 2- J. Britcher |
| 3- J. Britcher | 3- M. Palmer & T. Beale | 3- S. Luck |
| 350cc (Championship) | RH Sidecars (2) | 250cc (Championship) |
| 1- J. Britcher | 1- B. Stanford & R. Stanford | 1- C. Stewart |
| 2- R. Cook | 2- M. Cameron & J. Mitchell | 2- C. Packman |
| 3- D. Spain | 3- J. Mills & R. Penfold | 3- T. Black |