28 June 1981 at Newdigate
| 500cc | RH Sidecars | Unlimited |
| 1- Vince Kinchin | 1- Mick Cameron & ANOther | 1- Vince Kinchin |
| 2- Phil Vance | 2- Dave Steer & Michael Cave | 2- Perry Smith |
| 3- Richard Jenner | 3- Rob Wilson & Kevin Simmons | 3- S. Joy |
| 350cc | LH Sidecars | 250cc |
| 1- Ritchie Knight | 1- Dave Penfold & Bill Penfold | 1- Ritchie Knight |
| 2- Dave Mears | 2- Steve Dempsey & ANOther | 2- Maxine Hill |
| 3- Chris Underhill | 3- Mark Norris & Doug Norris | 3- Chris Underhill |