23 June 1991 at Irby-in-the-Marsh
| 500cc | 350cc | 250cc |
| 1- Dave Wright & Tony Atkin | 1- Martin Jacobs & Steve Carter | 1- Mark Wandsworth & Ian Rutter |
| 2- Andy Riley & Paul Fry | 2- Lee Potter & Neil Scopes | 2- Glenn Cunningham & Dave Bleaken |
| 3- Vince Kinchin & Gary Lobb | 3- Keith Potts & Dave Mears | 3- Ritchie Knight & Dean Camier |
| RH Sidecars | 500cc Sidecars | |
| 1- Richard Piggott & Martin Bailey / | 1- Kevin Leidie & Alan Pithouse / | |
| Martin Baker & Shayne Cann | Roger Newman & Mark Newman | |
| 2- Russell Ing & Paul Urycz / | 2- Brian Palmer & Craig Herbert / | |
| Paul Pinfold & Steve Robbins | Dave Coley & Scott Dunn | |
| 3- Ken Lane & Mark Edwards / | 3- Dave Collin & Rick Francis / | |
| Roger Measor & Steve Bailey | Malcolm Goodwin & Lester Goodwin |