3 November 1985 at Collier Street
| 500cc | RH Sidecars | Solo Invitation |
| 1- Jeremy Doncaster | 1- Steve Dewison & Chris O’Connell | 1- Jeremy Doncaster |
| 2- Marvyn Cox | 2- Roger Measor & Dave Harris | 2- Peter Carr |
| 3- Martin Hagon | 3- Mick Cameron & Paul Randall | 3- Will James |
| 4- Simon Cross | 4- Paul Pinfold & B Higgin | 4- Tony Forward |
| 5- Tony Forward | 5- Alan Blewitt & Nev Wilson | 5- Martin Hagon |
| 6- Will James | 6- Dave Manning & Peter Blanke | 6- Trevor Banks |
| LH Sidecars | ||
| 1- John O’Donnell & Paul Robinson | ||
| 2- Eric Tysoe & Paul Bolton | ||
| 3- Neil Cuff & Martin Cuff | ||
| 4- James Doyle & Peter Osbourne |
12 May 1985 at Collier Street
| 500cc | RH Sidecars | 250cc |
| 1- K. Howland | 1- I. Aram & B. Aldons | 1- D. Bishop |
| 2- T. Wilson | 2- M. Baxter & W. Andrews | 2- J. Duke |
| 3- B. Dolman | 3- R. Piggott & C. Skipper | 3- R. Knight |
| LH Sidecars | 500cc (Invitation) | 500cc Sidecars |
| 1- D. Penfold & T. Penfold | 1- T. Mussett | 1- D. Woodgates & D. Powell |
| 2- J. O’Donnell & P. Robertson | 2- T. Wilson | 2- B. Palmer & F. Dawson |
| 3- B. Holland & C. Pearce | 3- B. Dolman | 3- G. Moorcock & K. Radley |