11 October 1970 at Alvanley
| Unlimited (John Hitchin Trophy) | 350cc | 500cc |
| 1- T. Owen | 1- G. Drury | 1- T. Owen |
| 2- P. Collins | 2- J. Cox | 2- D. Evans |
| 3- J. Bryon | 3- D. Clark | 3- P. Neild |
| RH Sidecars (Second Leg) | 250cc | RH Sidecars (First Leg) |
| 1- G. Hancox & A. Artus* | 1- G. Drury | 1- G. Hancox & A. Artus |
| 2- T. Jones & T. Hall | 2- P. Collins | 2- T. Jones & T. Hall |
| 3- S. Bache & P. Bickley | 3- K. Evans | 3- P. Brown & G. Higgs |
| * Over Sidecar Championship taken over Two Legs |