16 August 1981 at Clyst St. Mary
| 500cc | RH Sidecars | 350cc |
| 1- Simon Wigg | 1- Dennis Teasdale & Keith Chapman | 1- Steve Schofield |
| 2- Mike Garrard | 2- Steve Smith & Trevor Pye | 2- Duncan Tolhurst |
| 3- Sean Willmott | 3- Steve Dewison & Martin Paul | 3- Chris Pidcock |
| LH Sidecars | 250cc | 500cc Sidecars |
| 1- Mick Turrell & Tony Strivens | 1- Dave Baybutt | 1- Clyde Cardy & Mark Morrison |
| 2- Jim Penfold & Steve Dempsey | 2- Dean Kendall | 2- Dick Barton & Dave Pope |
| 3- Alan Luker & Dave Sceats | 3- Dave Brown | 3- Peter Hastings & Adrian Hastings |
| For the First Leg:- See Northallerton | ||
| For the Third Leg:- See Shropshire |
12 July 1981 at Clyst-St-Mary
| 500cc | RH Sidecars | 350cc |
| 1- Jeremy Doncaster | 1- Steve Smith & Trevor Pye | 1- Duncan Tolhurst |
| 2- Martin Goodwin | 2- Dennis Teasdale & Keith Chapman | 2- Cameron Waugh |
| 3- Duncan Tolhurst | 3- Roger Cant & Tony Curtis | 3- Alan Gardiner |